DOCSLIB.ORG

A Comparative Electromyographic Analysis of Masseter and Temporalis Muscles in Edentulous Subjects

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
A Comparative Electromyographic Analysis of Masseter and Temporalis Muscles in Edentulous Subjects Jemds.com Original Research Article A Comparative Electromyographic Analysis of Masseter and Temporalis Muscles in Edentulous Subjects Krishna Prasad D.1, Annis Thomas2, Chethan Hegde3 1Department of Prosthodontics, Crown and Bridge, AB Shetty Memorial Institute of Dental Sciences, NITTE University, Mangaluru, Karnataka, India. 2Department of Prosthodontics, Crown and Bridge, AB Shetty Memorial Institute of Dental Sciences, NITTE University, Mangaluru, Karnataka, India. 3Department of Prosthodontics, Crown and Bridge, AB Shetty Memorial Institute of Dental Sciences, NITTE University, Mangaluru, Karnataka, India. ABSTRACT BACKGROUND All parts of skeletal system are held together and moved by skeletal muscles, which Corresponding Author: provide for locomotion for the individual to survive. Four pairs of muscles make a Annis Thomas, Postgraduate Student, group of muscles of mastication: temporalis, masseter, medial and lateral pterygoid. AB Shetty Memorial Institute of Dental Masseter is a rectangular muscle originating from the zygomatic arch extending Sciences, NITTE University, Mangaluru, downwards to lateral aspect of lower border of ramus. We wanted to evaluate the Karnataka, India. activity of masseter and temporalis muscle using electromyogram in subjects with E-mail: [email protected] balanced and non-balanced occlusion complete dentures. DOI: 10.14260/jemds/2019/799 METHODS 38 participants were selected and grouped into two as balanced and non-balanced Financial or Other Competing Interests: None. occlusal denture subjects. Steps of fabricating a complete denture was followed along by addition of tracing in cases of balanced occlusion group. This was followed How to Cite This Article: by recording the electromyographic readings at 1st appointment followed by an Prasad KD, Thomas A, Hegde C. A interval of 1 week and 3 weeks. These observations were then evaluated and comparative electromyographic analysis of compared for masseter and temporalis between the study groups. masseter and temporalis muscles in edentulous subjects. J. Evolution Med. Dent. RESULTS Sci. 2019;8(49):3693-3697, DOI: 10.14260/jemds/2019/799 The results show that there was an improvement in the muscle activity of temporalis and masseter when balanced group was observed following a period of Submission 24-07-2019, 48 hours. However, the masseter showed noticeable improvement in non-balanced Peer Review 24-09-2019, group at the end of 3 months when compared to balanced group. Acceptance 01-10-2019, Published 02-12-2019. CONCLUSIONS This study was conducted under the hypothesis that there will be no change in the EMG activity of masseter and temporalis muscles in patients wearing complete dentures with and without balanced occlusion. Although, it was not statistically significant, the EMG recordings of masseter and temporalis, amongst balanced and non-balanced group, had a notable variance in the recordings to support that balanced occlusal scheme does not have a complete influence over all masticatory muscles. KEY WORDS Edentulous Patients, Electromyogram, Masseter and Temporalis J. Evolution Med. Dent. Sci./eISSN- 2278-4802, pISSN- 2278-4748/ Vol. 8/ Issue 49/ Dec. 09, 2019 Page 3693 Jemds.com Original Research Article 5 BACKGROUND head and neck, cranial nerve lesion and seizure disorder . Two methods of electromyography exist- surface and intramuscular. Surface electromyogram is used to assess All parts of skeletal system are held together and moved by muscle function by recording muscle activity from the surface skeletal muscles, which provide for locomotion for the over muscle in the skin using a pair of electrodes6,7. This type individual to survive. Four pairs of muscles make a group of permits noninvasive investigation of bioelectrical muscles of mastication: temporalis, masseter, medial and phenomenon of muscular contraction. lateral pterygoid. Masseter is a rectangular muscle originating from zygomatic arch extending downwards to lateral aspect of lower border of ramus. It is a powerful METHODS muscle providing necessary force to chew efficiently. The superficial portion also aids in protrusion. Temporalis divides into 3 distinct areas according to fiber direction and ultimate Source of Data function. Anterior fibers directed almost vertically when This in vivo study was conducted on a total of 38 patients these fibers contract mandible is raised vertically, while using the following formula- middle fibers run obliquely across the lateral aspect of the 훼 skull and on contraction elevates and retrudes the mandible. 푛 = [푍1 − + 푍1 − 훽] 푥 푆. 퐷.2/ (μ) 2 Posterior fibers aligned almost horizontally, coming forward 2 above the ear to join other temporalis fibers as they pass From the age of 50 to 80 years. The muscles’ activity was under the zygomatic arch. Because of the variant angulation analysed using surface Electromyogram. of its muscle fibers, temporalis is capable of coordinating closing movements. It is thus a significant positioning muscle.(1) Inclusion Criteria Medial pterygoid on contraction, elevates the mandible Completely edentulous subjects. and also aids in protrusion of mandible. However, unilateral Subjects who are edentulous for at least 1 year. contraction brings about mediotrusive movement of the No Temporomandibular joint disorders. mandible. Lateral pterygoid was described as having two EMG was made 1-hour post consumption of food after 48 distinct portions or bellies until studies proved otherwise. In hours and in 1 week of insertion of complete dentures this literature, lateral pterygoid is divided and is identified as (immediate period) and after 3 months of insertion two distinct and different muscles, namely inferiorly lateral (delayed period). pterygoid and superior lateral pterygoid. When the right and left pterygoids contact simultaneously condyles are pulled Exclusion Criteria forward down the articular eminences and mandibular Patients with severely resorbed or flabby ridges. processes. Unilateral contraction brings about mediotrusive Subjects with uncontrolled systemic diseases. movement of the condyle and causes lateral movement of Patients with poor neuromuscular co-ordination. mandible to the opposite side. Along with mandibular depressors, the inferior lateral pterygoid lowers the mandible Thirty-eight patients requiring complete dentures were and the condyles glide forward and downward on the selected and history was recorded to assess their medical articular eminences.(2) history, dental history and habits to understand their pattern Balanced articulation is defined as the bilateral, for loss of teeth. The normal procedure for fabricating a simultaneous anterior and posterior occlusal contact of teeth in centric and eccentric positions. Balanced occlusion in complete denture was followed including attachment of complete denture is unique as it doesn’t occur with natural intra-oral tracers, Gothic-arch tracing and achieving teeth. The concept was originally put forth to enhance the interocclusal records. Patients were given post-insertion retention of complete denture during mastication. Balance is instructions and instructed to return for follow up after 48 now deemed necessary during many excursive movements hours. On completion of 48 hours, the patient was evaluated such as swallowing saliva, closing to reseat dentures and and enquired for problems with denture. After 1 hour of bruxism performed by patients in between means. Hence, if consumption of food, EMG recording was made to measure the balance is not present, the bases could shift, tip or torque the activity of the muscles after denture insertion. After 3 on their foundations during the eccentric movements and months, the recordings were repeated for the same 1 hour cause inflammation leading to accelerated bone resorption.(3) after consumption of food. Though some authors, argue that these contacts other than mastication are not likely to be made with any great deal of EMG Recording of Temporalis force, it is seen that many patients enjoy comfort only when Two pairs of miniature-surface Ag/AgCl electrodes were the eccentric balance is present. Complete edentulism not placed over the temporal muscle 1-inch posterior and 1-inch only hampers the mastication, aesthetics but also affects the superior to outer canthus of the eye. The ground electrodes psychological well-being of the patient. were placed over the skin of sternocleidomastoid. The Glossary of prosthodontics defines electromyography(4) recording was done at maximum intercuspal position. as the graphic recording of electric potential of muscle. It can also be described as recording and study of fundamental EMG Recording of Masseter electric properties of skeletal muscle using superficial or Electrodes over the masseter muscle were placed 2 cm above needle electrodes. In dentistry, uses of EMG is more common the lower margin of mandible, halfway between the in TMJ disorder, dysfunction, dystonia, muscle disease of J. Evolution Med. Dent. Sci./eISSN- 2278-4802, pISSN- 2278-4748/ Vol. 8/ Issue 49/ Dec. 09, 2019 Page 3694 Jemds.com Original Research Article mandibular angle and anterior border of muscle was identified by palpation and the same procedure as mentioned above was followed to record EMG activity. The recordings are done at excursive movements apart from the maximum intercuspation. Statistical Analysis The data obtained was subjected to statistical analysis using IBM SPSS version 22. The mean and standard deviation of the muscles’ tonicity was calculated, and these
Load more

Recommended publications
  • Questions on Human Anatomy
    Standard Medical Text-books. ROBERTS’ PRACTICE OF MEDICINE. The Theory and Practice of Medicine. By Frederick T. Roberts, m.d. Third edi- tion. Octavo. Price, cloth, $6.00; leather, $7.00 Recommended at University of Pennsylvania. Long Island College Hospital, Yale and Harvard Colleges, Bishop’s College, Montreal; Uni- versity of Michigan, and over twenty other medical schools. MEIGS & PEPPER ON CHILDREN. A Practical Treatise on Diseases of Children. By J. Forsyth Meigs, m.d., and William Pepper, m.d. 7th edition. 8vo. Price, cloth, $6.00; leather, $7.00 Recommended at thirty-five of the principal medical colleges in the United States, including Bellevue Hospital, New York, University of Pennsylvania, and Long Island College Hospital. BIDDLE’S MATERIA MEDICA. Materia Medica, for the Use of Students and Physicians. By the late Prof. John B Biddle, m.d., Professor of Materia Medica in Jefferson Medical College, Phila- delphia. The Eighth edition. Octavo. Price, cloth, $4.00 Recommended in colleges in all parts of the UnitedStates. BYFORD ON WOMEN. The Diseases and Accidents Incident to Women. By Wm. H. Byford, m.d., Professor of Obstetrics and Diseases of Women and Children in the Chicago Medical College. Third edition, revised. 164 illus. Price, cloth, $5.00; leather, $6.00 “ Being particularly of use where questions of etiology and general treatment are concerned.”—American Journal of Obstetrics. CAZEAUX’S GREAT WORK ON OBSTETRICS. A practical Text-book on Midwifery. The most complete book now before the profession. Sixth edition, illus. Price, cloth, $6.00 ; leather, $7.00 Recommended at nearly fifty medical schools in the United States.
    [Show full text]
  • MRI-Based Assessment of Masticatory Muscle Changes in TMD Patients After Whiplash Injury
    Journal of Clinical Medicine Article MRI-Based Assessment of Masticatory Muscle Changes in TMD Patients after Whiplash Injury Yeon-Hee Lee 1,* , Kyung Mi Lee 2 and Q-Schick Auh 1 1 Department of Orofacial Pain and Oral Medicine, Kyung Hee University Dental Hospital, #613 Hoegi-dong, Dongdaemun-gu, Seoul 02447, Korea; [email protected] 2 Department of Radiology, Kyung Hee University College of Medicine, Kyung Hee University Hospital, #26 Kyunghee-daero, Dongdaemun-gu, Seoul 02447, Korea; [email protected] * Correspondence: [email protected]; Tel.: +82-2-958-9409; Fax: +82-2-968-0588 Abstract: Objective: to investigate the change in volume and signal in the masticatory muscles and temporomandibular joint (TMJ) of patients with temporomandibular disorder (TMD) after whiplash injury, based on magnetic resonance imaging (MRI), and to correlate them with other clinical parameters. Methods: ninety patients (64 women, 26 men; mean age: 39.36 ± 15.40 years), including 45 patients with symptoms of TMD after whiplash injury (wTMD), and 45 age- and sex- matched controls with TMD due to idiopathic causes (iTMD) were included. TMD was diagnosed using the study diagnostic criteria for TMD Axis I, and MRI findings of the TMJ and masticatory muscles were investigated. To evaluate the severity of TMD pain and muscle tenderness, we used a visual analog scale (VAS), palpation index (PI), and neck PI. Results: TMD indexes, including VAS, PI, and neck PI were significantly higher in the wTMD group. In the wTMD group, muscle tenderness was highest in the masseter muscle (71.1%), and muscle tenderness in the temporalis (60.0%), lateral pterygoid muscle (LPM) (22.2%), and medial pterygoid muscle (15.6%) was significantly more frequent than that in the iTMD group (all p < 0.05).
    [Show full text]
  • Imaging of Mandibular Fractures: a Pictorial Review
    Nardi et al. Insights into Imaging (2020) 11:30 https://doi.org/10.1186/s13244-020-0837-0 Insights into Imaging EDUCATIONAL REVIEW Open Access Imaging of mandibular fractures: a pictorial review Cosimo Nardi1, Chiara Vignoli1, Michele Pietragalla1, Paolina Tonelli1, Linda Calistri1, Lorenzo Franchi2,3, Lorenzo Preda4,5* and Stefano Colagrande1 Abstract Mandibular fractures are among the most common maxillofacial fractures observed in emergency rooms and are mainly caused by road accidents. The clinical features of mandibular fractures include malocclusion and loss of mandibular function. Panoramic radiography is usually limited to isolated lesions, whereas computed tomography is the tool of choice for all other facial traumatic events. No reference standard classification system for the different types of mandibular fractures is defined. Therapeutic options include a conservative approach or surgical treatment based on the anatomic area and the severity of fracture. The main purpose of this pictorial review is to illustrate a practical description of the pathophysiology of mandibular fractures and describe both the imaging techniques to recognise them and the therapeutic indications. Keywords: Mandible, Condyle, Fracture, Trauma, Panoramic radiography Key points maxillofacial fractures varies according to geographical Mandibular fractures represent two thirds of all areas and socio-economic factors. The most common maxillofacial fractures. causes of maxillofacial fractures are road traffic accidents X-ray films, including panoramic radiography, are (40–42%), falls, assaults, sports, and work injuries [3]. usually limited to mild traumatic events. The average age of patients with mandibular fracture is Computed tomography is the tool of choice for the 38 years for men and 40 years for women [4].
    [Show full text]
  • Computed Tomography of the Buccomasseteric Region: 1
    605 Computed Tomography of the Buccomasseteric Region: 1. Anatomy Ira F. Braun 1 The differential diagnosis to consider in a patient presenting with a buccomasseteric James C. Hoffman, Jr. 1 region mass is rather lengthy. Precise preoperative localization of the mass and a determination of its extent and, it is hoped, histology will provide a most useful guide to the head and neck surgeon operating in this anatomically complex region. Part 1 of this article describes the computed tomographic anatomy of this region, while part 2 discusses pathologic changes. The clinical value of computed tomography as an imaging method for this region is emphasized. The differential diagnosis to consider in a patient with a mass in the buccomas­ seteric region, which may either be developmental, inflammatory, or neoplastic, comprises a rather lengthy list. The anatomic complexity of this region, defined arbitrarily by the soft tissue and bony structures including and surrounding the masseter muscle, excluding the parotid gland, makes the accurate anatomic diagnosis of masses in this region imperative if severe functional and cosmetic defects or even death are to be avoided during treatment. An initial crucial clinical pathoanatomic distinction is to classify the mass as extra- or intraparotid. Batsakis [1] recommends that every mass localized to the cheek region be considered a parotid tumor until proven otherwise. Precise clinical localization, however, is often exceedingly difficult. Obviously, further diagnosis and subsequent therapy is greatly facilitated once this differentiation is made. Computed tomography (CT), with its superior spatial and contrast resolution, has been shown to be an effective imaging method for the evaluation of disorders of the head and neck.
    [Show full text]
  • Atlas of the Facial Nerve and Related Structures
    Rhoton Yoshioka Atlas of the Facial Nerve Unique Atlas Opens Window and Related Structures Into Facial Nerve Anatomy… Atlas of the Facial Nerve and Related Structures and Related Nerve Facial of the Atlas “His meticulous methods of anatomical dissection and microsurgical techniques helped transform the primitive specialty of neurosurgery into the magnificent surgical discipline that it is today.”— Nobutaka Yoshioka American Association of Neurological Surgeons. Albert L. Rhoton, Jr. Nobutaka Yoshioka, MD, PhD and Albert L. Rhoton, Jr., MD have created an anatomical atlas of astounding precision. An unparalleled teaching tool, this atlas opens a unique window into the anatomical intricacies of complex facial nerves and related structures. An internationally renowned author, educator, brain anatomist, and neurosurgeon, Dr. Rhoton is regarded by colleagues as one of the fathers of modern microscopic neurosurgery. Dr. Yoshioka, an esteemed craniofacial reconstructive surgeon in Japan, mastered this precise dissection technique while undertaking a fellowship at Dr. Rhoton’s microanatomy lab, writing in the preface that within such precision images lies potential for surgical innovation. Special Features • Exquisite color photographs, prepared from carefully dissected latex injected cadavers, reveal anatomy layer by layer with remarkable detail and clarity • An added highlight, 3-D versions of these extraordinary images, are available online in the Thieme MediaCenter • Major sections include intracranial region and skull, upper facial and midfacial region, and lower facial and posterolateral neck region Organized by region, each layered dissection elucidates specific nerves and structures with pinpoint accuracy, providing the clinician with in-depth anatomical insights. Precise clinical explanations accompany each photograph. In tandem, the images and text provide an excellent foundation for understanding the nerves and structures impacted by neurosurgical-related pathologies as well as other conditions and injuries.
    [Show full text]
  • Of the One-Humped Camel
    J. Anat. (1970), 106, 2, pp. 341-348 341 With 3 figures Printed in Great Britain The course and branches of the facial nerve of the one-humped camel I. ARNAUTOVIC, M. E. ABU SINEINA AND M. STANIC Faculty of Veterinary Science, University of Khartoum (Received 14 February 1969) The course and ramification of the facial nerve of the camel have not previously been clearly established, and the brief references that occur in the literature are of a rather general kind. Thus Lesbre (1906) stated that the cranial nerves of the camel were similar to those of ruminants, and Leese (1927) concluded that there were no significant differences between the course of the facial nerve of the camel and that of other ruminants. Droandi (1936) gave a more detailed account of the facial nerve which he described as ramifying on the external surface of the head. Tayeb (1958), who studied the cranial nerves of the camel, did not give the full account of the facial nerve. MATERIAL AND METHODS During the period July 1966 to December 1967 the heads of fifteen camels slaugh- tered at Tamboul Slaughterhouse, south-east of Khartoum, were collected for dis- section at the Faculty of Veterinary Science, Shambat. The heads belonged to normal healthy animals, seven males and eight females, varying in age from 4 to 10 years. Both sides of each head were used in the study. The heads were removed, with their skin intact, from the carcasses at the level of the third cervical vertebra. Some of the specimens were dissected immediately after collection, others were injected with 10 % formalin and studied later.
    [Show full text]
  • The Independent Functions of the Two Heads of the Lateral Pterygoid Muscle
    The Independent Functions of the Two Heads of the Lateral Pterygoid Muscle JAMES A. McNAMARA, JR. Department of Anatomy and Center for Human Growth and Development, The University of Michigan, Ann Arbor, Michigan 48104 ABSTRACT Investigations on the role of the lateral pterygoid muscle in mandibular movements have been limited due to difficulties in obtaining con- sistent neuromuscular recordings in human subjects. The rhesus monkey was used as a substitute experimental animal. Thirty-three Macaca mulatta were monitored in 113 electromyographic recording sessions. Two distinct functional patterns were identified from the region of the lateral pterygoid muscle, depend- ing upon the location of the electrodes within this muscle. Through anatomical dissection of areas of electrode placement in 12 animals, the two patterns of activity were related to the inferior and superior heads of the lateral pterygoid muscle. The inferior head acted synergistically with the suprahyoid muscle group in opening movements of the mandible. No activity was noted in closing movements, or in swallowing. In contrast, the superior head was not active dur- ing opening movements. Electromyographic activity of the superior head, an- tagonistic to the suprahyoid muscles, was observed during such closing move- ments as chewing and clenching of the teeth and during deglutition. The superior head presumably positioned or stabilized the condylar head and disc against the articular eminence during closing movements of the mandible, while the in- ferior head assisted in the translation of the condylar head downward, anteriorly, and contralaterally during opening movements. Thus, the two heads of the lateral pterygoid can be considered as two functionally distinct muscles.
    [Show full text]
  • AR 31-14 Wong STYLOID AB
    1 Temporal headaches and associated symptoms relating to the styloid process and its attachments Annals Academy of Medicine, Singapore January 1995; Vol. 24; No. 1; pp. 124-128 E. Wong, DDS; G Lee, MD; DT Mason, MD KEY POINTS FROM THIS ARTICLE: 1) The styloid process is a thin “spike-like bony process” that is attached to the base of the skull. 2) 5 structures (3 muscles and 2 ligaments) are attached to the styloid process: A)) The styloglossus muscle B)) The stylohyoid muscle C)) The stylopharyngeal muscle D)) The stylomandibular ligament E)) The stylohyoid ligament 3) Trauma (auto accidents, falls, sports injuries, prolonged or excessive mouth opening) can detach any of these 5 structures from the periosteum of the styloid bone. 4) “The detachment of Sharpey's fibers results in the release of noxious chemicals such as kinins, histamines, prostaglandins, etc., which can produce a withdrawal reflex, causing muscle tension, ischaemia, spasm and pain.” 5) Pain transmission from “C” pain fibers induces a host of autonomic responses. [Key Point] 6) These authors have identified 11 common pains and symptoms associated with soft tissue lesions of the styloid process and stylomandibular ligament: A)) Headaches localized in the anterior temporal fossa. This is due to the pain withdrawal reflex and spasm of temporalis muscle fibers. B)) Sore throat and difficulty swallowing in the absence of inflammation. This is due to the pain withdrawal reflex and spasm of all three of the styloid-attached muscles. C)) Pain radiating to the temporomandibular joint and ear. This is due to the pain withdrawal reflex and spasm of the muscles of mastication, particularly the masseter and the medial/lateral pterygoids.
    [Show full text]
  • Jaw Muscularization Requires Dlx Expression by Cranial Neural Crest Cells
    Jaw muscularization requires Dlx expression by cranial neural crest cells Églantine Heudea, Kamal Bouhalia, Yukiko Kuriharab, Hiroki Kuriharab, Gérard Coulya, Philippe Janvierc,d, and Giovanni Levia,1 aÉvolution des Régulations Endocriniennes, Centre National de la Recherche Scientifique Unité Mixte de Recherche 7221, Muséum National d’Histoire Naturelle, 75005 Paris, France; bDepartment of Physiological Chemistry and Metabolism, Graduate School of Medicine, University of Tokyo,113-0033 Tokyo, Japan; cDépartement Histoire de la Terre, Centre National de la Recherche Scientifique Unité Mixte de Recherche 7207, Muséum National d’Histoire Naturelle, 75005 Paris, France; and dThe Natural History Museum, London SW7 5BD, United Kingdom Edited* by Nicole M. Le Douarin, Centre National de la Recherche Scientifique, Gif-sur-Yvette, France, and approved May 14, 2010 (received for review February 11, 2010) The origin of active predation in vertebrates is associated with the trunk muscles depends on different regulatory pathways (13–16). rise of three major, uniquely derived developmental characteristics In the head, bone morphogenetic proteins (BMPs) and canonical of the head: (i) migratory cranial neural crest cells (CNCCs) giving Wnt signaling molecules act to repress skeletal muscle differen- rise to most skeletal skull elements; (ii) expression of Dlx genes by tiation. By contrast, the same BMP and Wnt ligands are required CNCCs in the Hox-free first pharyngeal arch (PA1); and (iii) muscu- to stimulate myogenesis in the trunk. Myogenic differentiation of larization of PA1 derivatives. Here we show that these three inno- the CPM in vitro is permitted, therefore, by CNCC production of vations are tightly linked. Expression of Dlx genes by CNCCs is not BMP and Wnt inhibitors (Noggin, Gremlin, Frzb) (17).
    [Show full text]
  • Topographic Anatomy of the Head
    O. V. Korencov, G. F. Tkach TOPOGRAPHIC ANATOMY OF THE HEAD Study guide Ministry of Education and Science of Ukraine Ministry of Health of Ukraine Sumy State University O. V. Korencov, G. F. Tkach TOPOGRAPHIC ANATOMY OF THE HEAD Study guide Recommended by Academic Council of Sumy State University Sumy Sumy State University 2016 УДК 611.91(075.3) ББК 54.54я73 K66 Reviewers: L. V. Phomina – Doctor of Medical Sciences, Professor of Vinnytsia National Medical University named after M. I. Pirogov; M. V. Pogorelov – Doctor of Medical Sciences, Professor of Sumy State University Recommended for publication by Academic Council of Sumy State University as а study guide (minutes № 5 of 11.02.2016) Korencov O. V. K66 Topographic anatomy of the head : study guide / O. V. Korencov, G. F. Tkach. – Sumy : Sumy State University, 2016. – 81 р. ISBN 978-966-657-607-4 This manual is intended for the students of medical higher educational institutions of IV accreditation level, who study Human Anatomy in the English language. Посібник рекомендований для студентів вищих медичних навчальних закладів IV рівня акредитації, які вивчають анатомію людини англійською мовою. УДК 611.91(075.3) ББК 54.54я73 © Korencov O. V., Tkach G. F., 2016 ISBN 978-966-657-607-4 © Sumy State University, 2016 TOPOGRAPHIC ANATOMY OF THE HEAD The head is subdivided into two following departments: the brain and facialohes. They are shared by line from the glabella to the supraorbital edge along the zygomatic arch to the outer ear canal. The brain part consists of fornix and base of the skull. The fornix is divided into fronto- parieto-occipital region, paired temporal and mastoid area.
    [Show full text]
  • Developmental Anomalies of Temporal Muscle
    urrent C R Guerrissi and Cotroneo, Surgery Curr Res 2014, 4:5 : es ry e e a g r r c 10.4172/2161-1076.1000199 u h DOI: S Surgery: Current Research ISSN: 2161-1076 Research Article Open Access Developmental Anomalies of Temporal Muscle Jorge Orlando Guerrissi and Gustavo Gabriel Cotroneo* Hospital cosme argerich, ciudad de buenos aires, buenos aires, Argentina *Correspondimg author: Gustavo Gabriel Cotroneo, Hospital cosme argerich plastic and reconstructive surgery, pyy margal 750, ciudad de buenos aires, buenos aires C1155AHD, Argentina, Tel: +5491132266671/ 41210900; E-mail: [email protected] Rec date: May 21, 2014; Acc date: Jul 7, 2014; Pub date: Jul 9, 2014 Copyright: © 2014 Guerrissi JO, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Abstract The anatomy of the temporal region is complex. Also there is controversy over the structures that make up the region. Thus than classically described anatomical structures as fascias, temporal muscle, frontal nerve, arteries, the superficial temporal muscle is present in a variable number of cases. This muscle represents fibrous regression of named superficial temporal muscle very developed in animals with a specific masticatory action. In human has no physiological importance but its knowledge is important for plastic and maxillofacial surgeons to undertake surgeries in the region since it can generate confusion over anatomical planes and their relationship to vessels and nerves. Keywords: Developmental anomalies; Superficial temporal muscle; A loose areolar tissue plane lies deep to the temporoparietal fascia Temporoparietal fascia; Temporal region and extends beneath the entire superficial fascia system of the scalp, including the galea aponeurotica and the frontalis and occipitalis Introduction muscle.
    [Show full text]
  • Atlas of Topographical and Pathotopographical Anatomy of The
    Contents Cover Title page Copyright page About the Author Introduction Part 1: The Head Topographic Anatomy of the Head Cerebral Cranium Basis Cranii Interna The Brain Surgical Anatomy of Congenital Disorders Pathotopography of the Cerebral Part of the Head Facial Head Region The Lymphatic System of the Head Congenital Face Disorders Pathotopography of Facial Part of the Head Part 2: The Neck Topographic Anatomy of the Neck Fasciae, Superficial and Deep Cellular Spaces and their Relationship with Spaces Adjacent Regions (Fig. 37) Reflex Zones Triangles of the Neck Organs of the Neck (Fig. 50–51) Pathography of the Neck Topography of the neck Appendix A Appendix B End User License Agreement Guide 1. Cover 2. Copyright 3. Contents 4. Begin Reading List of Illustrations Chapter 1 Figure 1 Vessels and nerves of the head. Figure 2 Layers of the frontal-parietal-occipital area. Figure 3 Regio temporalis. Figure 4 Mastoid process with Shipo’s triangle. Figure 5 Inner cranium base. Figure 6 Medial section of head and neck Figure 7 Branches of trigeminal nerve Figure 8 Scheme of head skin innervation. Figure 9 Superficial head formations. Figure 10 Branches of the facial nerve Figure 11 Cerebral vessels. MRI. Figure 12 Cerebral vessels. Figure 13 Dural venous sinuses Figure 14 Dural venous sinuses. MRI. Figure 15 Dural venous sinuses Figure 16 Venous sinuses of the dura mater Figure 17 Bleeding in the brain due to rupture of the aneurism Figure 18 Types of intracranial hemorrhage Figure 19 Different types of brain hematomas Figure 20 Orbital muscles, vessels and nerves. Topdown view, Figure 21 Orbital muscles, vessels and nerves.
    [Show full text]