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Morphology of the Dural Venous Complex of Skull Base in Human
Brain and Nerves Research Article ISSN: 2515-012X Morphology of the dural venous complex of skull base in human ontogenesis Maryna Kornieieva* Anatomy, Histology, and Embryology Department, AUC School of Medicine, Lowlands, Sint Maarten, Netherlands Antilles Abstract The development of the dural venous complex of the skull base formed by the cavernous, intercavernous, and petrous dural sinuses and their connections with the intra- and extracranial veins and venous plexuses, was investigated on 112 premature stillborn human fetuses from 16 to 36 weeks of gestation by methods of vascular corrosion casting. It was established that the main intracranial dural canals approach similar to the mature arrangement at the very beginning of the early fetal period. In fetuses 16 weeks of gestation, the parasellar dural venous complex appeared as a plexiform venous ring draining the venous plexus of the orbits into the petrous sinuses. The average diameter of dural canals progressively enlarged and reached its maximum value 2.2 ± 0.53 mm approaching the 24th week of gestation. This developmental stage is characterized by the intensive formation of the emissary veins connecting the cavernous sinus with the extracranial venous plexuses. Due to the particular fusion of the intraluminal canals, the average diameter of the lumen gradually declined to reach 1.9 ± 0.54 mm in 36-week-old fetuses. By the end of the fetal development, 21.3% of fetuses featured a considerable reduction of the primary venous system with the formation of the one-canal shaped dural venous sinuses, obliteration of several tributaries, and decreased density of the extracranial venous plexuses. -
Gross Anatomy Assignment Name: Olorunfemi Peace Toluwalase Matric No: 17/Mhs01/257 Dept: Mbbs Course: Gross Anatomy of Head and Neck
GROSS ANATOMY ASSIGNMENT NAME: OLORUNFEMI PEACE TOLUWALASE MATRIC NO: 17/MHS01/257 DEPT: MBBS COURSE: GROSS ANATOMY OF HEAD AND NECK QUESTION 1 Write an essay on the carvernous sinus. The cavernous sinuses are one of several drainage pathways for the brain that sits in the middle. In addition to receiving venous drainage from the brain, it also receives tributaries from parts of the face. STRUCTURE ➢ The cavernous sinuses are 1 cm wide cavities that extend a distance of 2 cm from the most posterior aspect of the orbit to the petrous part of the temporal bone. ➢ They are bilaterally paired collections of venous plexuses that sit on either side of the sphenoid bone. ➢ Although they are not truly trabeculated cavities like the corpora cavernosa of the penis, the numerous plexuses, however, give the cavities their characteristic sponge-like appearance. ➢ The cavernous sinus is roofed by an inner layer of dura matter that continues with the diaphragma sellae that covers the superior part of the pituitary gland. The roof of the sinus also has several other attachments. ➢ Anteriorly, it attaches to the anterior and middle clinoid processes, posteriorly it attaches to the tentorium (at its attachment to the posterior clinoid process). Part of the periosteum of the greater wing of the sphenoid bone forms the floor of the sinus. ➢ The body of the sphenoid acts as the medial wall of the sinus while the lateral wall is formed from the visceral part of the dura mater. CONTENTS The cavernous sinus contains the internal carotid artery and several cranial nerves. Abducens nerve (CN VI) traverses the sinus lateral to the internal carotid artery. -
CHAPTER 8 Face, Scalp, Skull, Cranial Cavity, and Orbit
228 CHAPTER 8 Face, Scalp, Skull, Cranial Cavity, and Orbit MUSCLES OF FACIAL EXPRESSION Dural Venous Sinuses Not in the Subendocranial Occipitofrontalis Space More About the Epicranial Aponeurosis and the Cerebral Veins Subcutaneous Layer of the Scalp Emissary Veins Orbicularis Oculi CLINICAL SIGNIFICANCE OF EMISSARY VEINS Zygomaticus Major CAVERNOUS SINUS THROMBOSIS Orbicularis Oris Cranial Arachnoid and Pia Mentalis Vertebral Artery Within the Cranial Cavity Buccinator Internal Carotid Artery Within the Cranial Cavity Platysma Circle of Willis The Absence of Veins Accompanying the PAROTID GLAND Intracranial Parts of the Vertebral and Internal Carotid Arteries FACIAL ARTERY THE INTRACRANIAL PORTION OF THE TRANSVERSE FACIAL ARTERY TRIGEMINAL NERVE ( C.N. V) AND FACIAL VEIN MECKEL’S CAVE (CAVUM TRIGEMINALE) FACIAL NERVE ORBITAL CAVITY AND EYE EYELIDS Bony Orbit Conjunctival Sac Extraocular Fat and Fascia Eyelashes Anulus Tendineus and Compartmentalization of The Fibrous "Skeleton" of an Eyelid -- Composed the Superior Orbital Fissure of a Tarsus and an Orbital Septum Periorbita THE SKULL Muscles of the Oculomotor, Trochlear, and Development of the Neurocranium Abducens Somitomeres Cartilaginous Portion of the Neurocranium--the The Lateral, Superior, Inferior, and Medial Recti Cranial Base of the Eye Membranous Portion of the Neurocranium--Sides Superior Oblique and Top of the Braincase Levator Palpebrae Superioris SUTURAL FUSION, BOTH NORMAL AND OTHERWISE Inferior Oblique Development of the Face Actions and Functions of Extraocular Muscles Growth of Two Special Skull Structures--the Levator Palpebrae Superioris Mastoid Process and the Tympanic Bone Movements of the Eyeball Functions of the Recti and Obliques TEETH Ophthalmic Artery Ophthalmic Veins CRANIAL CAVITY Oculomotor Nerve – C.N. III Posterior Cranial Fossa CLINICAL CONSIDERATIONS Middle Cranial Fossa Trochlear Nerve – C.N. -
Carotid-Cavernous Sinus Fistulas and Venous Thrombosis
141 Carotid-Cavernous Sinus Fistulas and Venous Thrombosis Joachim F. Seeger1 Radiographic signs of cavernous sinus thrombosis were found in eight consecutive Trygve 0. Gabrielsen 1 patients with an angiographic diagnosis of carotid-cavernous sinus fistula; six were of 1 2 the dural type and the ninth case was of a shunt from a cerebral hemisphere vascular Steven L. Giannotta · Preston R. Lotz ,_ 3 malformation. Diagnostic features consisted of filling defects within the cavernous sinus and its tributaries, an abnormal shape of the cavernous sinus, an atypical pattern of venous drainage, and venous stasis. Progression of thrombosis was demonstrated in five patients who underwent follow-up angiography. Because of a high incidence of spontaneous resolution, patients with dural- cavernous sinus fistulas who show signs of venous thrombosis at angiography should be followed conservatively. Spontaneous closure of dural arteriovenous fistulas involving branches of the internal and/ or external carotid arteries and the cavernous sinus has been reported by several investigators (1-4). The cause of such closure has been speculative, although venous thrombosis recently has been suggested as a possible mechanism (3]. This report demonstrates the high incidence of progres sive thrombosis of the cavernous sinus associated with dural carotid- cavernous shunts, proposes a possible mechanism of the thrombosis, and emphasizes certain characteristic angiographic features which are clues to thrombosis in evolution, with an associated high incidence of spontaneous " cure. " Materials and Methods We reviewed the radiographic and medical records of eight consecutive patients studied at our hospital in 1977 who had an angiographic diagnosis of carotid- cavernous sinus Received September 24, 1979; accepted after fistula. -
Dural Venous System in the Cavernous Sinus: a Literature Review and Embryological, Functional, and Endovascular Clinical Considerations
Neurologia medico-chirurgica Advance Publication Date: April 11, 2016 Neurologia medico-chirurgica Advance Publication Date: April 11, 2016 REVIEW ARTICLE doi: 10.2176/nmc.ra.2015-0346 Neurol Med Chir (Tokyo) xx, xxx–xxx, xxxx Online April 11, 2016 Dural Venous System in the Cavernous Sinus: A Literature Review and Embryological, Functional, and Endovascular Clinical Considerations Yutaka MITSUHASHI,1 Koji HAYASAKI,2 Taichiro KAWAKAMI,3 Takashi NAGATA,1 Yuta KANESHIRO,2 Ryoko UMABA,4 and Kenji OHATA 3 1Department of Neurosurgery, Ishikiri-Seiki Hospital, Higashiosaka, Osaka; 2Department of Neurosurgery, Japan Community Health Care Organization, Hoshigaoka Medical Center, Hirakata, Osaka; 3Department of Neurosurgery, Osaka City University, Graduate School of Medicine, Osaka, Osaka; 4Department of Neurosurgery, Osaka Saiseikai Nakatsu Hospital, Osaka, Osaka Abstract The cavernous sinus (CS) is one of the cranial dural venous sinuses. It differs from other dural sinuses due to its many afferent and efferent venous connections with adjacent structures. It is important to know well about its complex venous anatomy to conduct safe and effective endovascular interventions for the CS. Thus, we reviewed previous literatures concerning the morphological and functional venous anatomy and the embryology of the CS. The CS is a complex of venous channels from embryologically different origins. These venous channels have more or less retained their distinct original roles of venous drainage, even after alterations through the embryological developmental process, and can be categorized into three longitudinal venous axes based on their topological and functional features. Venous channels medial to the internal carotid artery “medial venous axis” carry venous drainage from the skull base, chondrocranium and the hypophysis, with no direct participation in cerebral drainage. -
The Common Carotid Artery Arises from the Aortic Arch on the Left Side
Vascular Anatomy: • The common carotid artery arises from the aortic arch on the left side and from the brachiocephalic trunk on the right side at its bifurcation behind the sternoclavicular joint. The common carotid artery lies in the medial part of the carotid sheath lateral to the larynx and trachea and medial to the internal jugular vein with the vagus nerve in between. The sympathetic trunk is behind the artery and outside the carotid sheath. The artery bifurcates at the level of the greater horn of the hyoid bone (C3 level?). • The external carotid artery at bifurcation lies medial to the internal carotid artery and then runs up anterior to it behind the posterior belly of digastric muscle and behind the stylohyoid muscle. It pierces the deep parotid fascia and within the gland it divides into its terminal branches the superficial temporal artery and the maxillary artery. As the artery lies in the parotid gland it is separated from the ICA by the deep part of the parotid gland and stypharyngeal muscle, glossopharyngeal nerve and the pharyngeal branch of the vagus. The I JV is lateral to the artery at the origin and becomes posterior near at the base of the skull. • Branches of the ECA: A. From the medial side one branch (ascending pharyngeal artery: gives supply to glomus tumour and petroclival meningiomas) B. From the front three branches (superior thyroid, lingual and facial) C. From the posterior wall (occipital and posterior auricular). Last Page 437 and picture page 463. • The ICA is lateral to ECA at the bifurcation. -
The Cranial Dura Mater: a Review of Its History, Embryology, and Anatomy
Childs Nerv Syst (2012) 28:827–837 DOI 10.1007/s00381-012-1744-6 REVIEW PAPER The cranial dura mater: a review of its history, embryology, and anatomy Nimer Adeeb & Martin M. Mortazavi & R. Shane Tubbs & Aaron A. Cohen-Gadol Received: 14 February 2012 /Accepted: 23 March 2012 /Published online: 15 April 2012 # Springer-Verlag 2012 Abstract mother) and umm al-raqiqah (thin mother). These terms were Introduction The dura mater is important to the clinician as then literally translated into Latin by the twelfth century Italian a barrier to the internal environment of the brain, and surgi- monk Stephen of Antioch, as the dura (hard) mater (Fig. 1), and cally, its anatomy should be well known to the neurosurgeon the pia (pious) mater. The term pia was a misnomer and should and clinician who interpret imaging. have been replaced by tenue (from tennus meaning thin), but Methods The medical literature was reviewed in regard to the term pia has persisted. The first introduction of the word the morphology and embryology of specifically, the intra- arachnoid (spider-like) mater was by Herophilus in the third cranial dura mater. A historic review of this meningeal layer century B.C., who also described its relation to the ventricles. It is also provided. was later described by the Dutch anatomist Frederik Ruysch in Conclusions Knowledge of the cranial dura mater has a rich the seventeenth century. The term mater is derived from ma- history. The embryology is complex, and the surgical anat- (from matru meaning mother) and the suffix -ter indicating a omy of this layer and its specializations are important to the state of being [41, 53]. -
27. Veins of the Head and Neck
GUIDELINES Students’ independent work during preparation to practical lesson Academic discipline HUMAN ANATOMY Topic VEINS OF THE HEAD AND NECK 1. The relevance of the topic: Knowledge of the anatomy of the veins of head and neck is a base of clinical thinking and differential diagnosis for the doctor of any specialty, but, above all, dentists, neurologists and surgeons who operate in areas of the neck or head. 2. Specific objectives - demonstrate superior vena cava, right and left brachiocephalic, subclavian, internal and external jugular, anterior jugular veins and venous angles. - demonstrate dural sinuses, veins of the brain. - demonstrate pterygoid plexus, retromandibular, facial veins and other tributaries of extracranial part of internal jugular vein. - demonstrate external jugular vein. - identify and demonstrate anastomoses on the head and neck. 3. Basic level of preparation Student should know and be able to: 1. To demonstrate the structural features of the cervical vertebrae. 2. To demonstrate the anatomical lesions of external and internal base of the skull. 3. To demonstrate the muscles of the head and neck. 4. To demonstrate the divisions of the brain. 4. Tasks for independent work during preparation for practical lessons 4.1. A list of the main terms, parameters, characteristics that need to be learned by student during the preparation for the lesson Term Definition JUGULAR VEINS Veins that take deoxygenated blood from the head to the heart via the superior vena cava. INTERNAL JUGULAR VEIN Starts from the sigmoid sinus of the dura mater and receives the blood from common facial vein. The internal jugular vein runs with the common carotid artery and vagus nerve inside the carotid sheath. -
Cavernous Sinus
Cavernous Sinus Developments and Future Perspectives Bearbeitet von Vinko V Dolenc, Larry Rogers 1. Auflage 2009. Buch. X, 227 S. Hardcover ISBN 978 3 211 72137 7 Format (B x L): 19,3 x 26 cm Gewicht: 980 g Weitere Fachgebiete > Medizin > Chirurgie schnell und portofrei erhältlich bei Die Online-Fachbuchhandlung beck-shop.de ist spezialisiert auf Fachbücher, insbesondere Recht, Steuern und Wirtschaft. Im Sortiment finden Sie alle Medien (Bücher, Zeitschriften, CDs, eBooks, etc.) aller Verlage. Ergänzt wird das Programm durch Services wie Neuerscheinungsdienst oder Zusammenstellungen von Büchern zu Sonderpreisen. Der Shop führt mehr als 8 Millionen Produkte. J. T. Keller et al., Venous anatomy of the lateral sellar compartment 41 tomeningeal artery through the superior orbital Both the sphenoid and Vesalian emissary veins drain fissure. whatPadgettermedthelateralwingof thecavernous According to Streeter [58], the superior petrosal sinus, a remnant of the pro-otic sinus. Browder and sinus appears in the 18-mm embryo. Padget identi- Kaplan refer to the sphenoid emissary vein as the fied the superior petrosal sinus at 14–16 mm as early trigeminal plexus [6, 24]. as Stage 4 (Fig. 2C). However, the definitive superior petrosal sinus is the last of the major adult sinuses to be formed. Of note, the superior petrosal sinus has Venous anatomy of the lateral sellar no well-defined communication with the cavernous compartment sinus and any communication that occurs is late in development. The lateral sellar compartment can be succinctly Special attention should be given to the develop- defined as the dural envelope that encloses the ment of the orbital veins. Before Stage 4, the primitive parasellar internal carotid artery (ICA). -
Classification of Cavernous Sinus Fistulas
MEDICAL RADIOLOGY Diagnostic Imaging Editors: A. L. Baert, Leuven M. Knauth, Göttingen K. Sartor, Heidelberg Goetz Benndorf Dural Cavernous Sinus Fistulas Diagnostic and Endovascular Therapy Foreword by K. Sartor With 178 Figures in 755 Separate Illustrations, 540 in Color and 19 Tables 1 3 Goetz Benndorf, MD, PhD Associate Professor, Department of Radiology Baylor College of Medicine Director of Interventional Neuroradiology Ben Taub General Hospital One Baylor Plaza, MS 360 Houston, TX 77030 USA Medical Radiology · Diagnostic Imaging and Radiation Oncology Series Editors: A. L. Baert · L. W. Brady · H.-P. Heilmann · M. Knauth · M. Molls · C. Nieder · K. Sartor Continuation of Handbuch der medizinischen Radiologie Encyclopedia of Medical Radiology ISBN 978-3-540-00818-7 e-ISBN 978-3-540-68889-1 DOI 10.0007 / 978-3-540-68889-1 Medical Radiology · Diagnostic Imaging and Radiation Oncology ISSN 0942-5373 Library of Congress Control Number: 2004116221 © 2010, Springer-Verlag Berlin Heidelberg This work is subject to copyright. All rights are reserved, whether the whole or part of the material is concerned, specifi cally the rights of translation, reprinting, reuse of illustrations, recitations, broadcasting, reproduction on microfi lm or in any other way, and storage in data banks. Duplication of this publication or parts thereof is permit- ted only under the provisions of the German Copyright Law of September 9, 1965, in its current version, and permis- sion for use must always be obtained from Springer-Verlag. Violations are liable for prosecution under the German Copyright Law. The use of general descriptive names, trademarks, etc. in this publication does not imply, even in the absence of a specifi c statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use. -
Lecture in Anatomy of Endocrine System by Dr
Lecture in Anatomy of Endocrine System By Dr. Mohammad Ahmad Abdulla The endocrine system is made up of several glands:- the pituitary gland (Cerebral hypophysis), pineal, thyroid, thymus, parathyroids, suprarenals, islets of Langerhans of the pancreas, testes, ovaries, and, when present, the placenta. In addition, there are groups of cells that form a minor part of the system and are not considered in this chapter: the gastroenteroendocrine cells, kidney cells, and certain cells the lung that store and secrete amines. The endocrine glands have no ducts and consist of masses of cells richly supplied by blood vessels, which pour their secretions (hormones) directly into the blood stream. The medical professional needs a sound grounding in the structure and function of the endocrine system to be able to apply physiology lid hormone therapy in daily clinical practice, moreover, it must be remembered that disease y affect more than one endocrine gland at same time in an individual patient, a condition own as multiple endocrine neoplasia. It should ) be remembered that patients with advanced malignant disease sometimes produce hormones that are not indigenous to the tissue from which the tumor arose (paraneoplastic syndromes). 1 Pituitary Gland (Hypophysis Cerebri) Location and Description The pituitary gland is a small, oval structure attached to the undersurface of the brain by the infundibulum. During pregnancy, it doubles in size. The gland is well protected by virtue of its location in the sella turcica of the sphenoid bone. Because the hormones produced by the gland influence the activities of many other endocrine glands, the hypophysis cerebri is often referred to as the master endocrine gland. -
Veins of the Systemic Circulation
O.L. ZHARIKOVA, L.D.CHAIKA VEINS OF THE SYSTEMIC CIRCULATION Minsk BSMU 2020 0 МИНИСТЕРСТВО ЗДРАВООХРАНЕНИЯ РЕСПУБЛИКИ БЕЛАРУСЬ БЕЛОРУССКИЙ ГОСУДАРСТВЕННЫЙ МЕДИЦИНСКИЙ УНИВЕРСИТЕТ КАФЕДРА НОРМАЛЬНОЙ АНАТОМИИ О. Л. ЖАРИКОВА, Л.Д.ЧАЙКА ВЕНЫ БОЛЬШОГО КРУГА КРОВООБРАЩЕНИЯ VEINS OF THE SYSTEMIC CIRCULATION Учебно-методическое пособие Минск БГМУ 2018 1 УДК 611.14 (075.8) — 054.6 ББК 28.706я73 Ж34 Рекомендовано Научно-методическим советом в качестве учебно-методического пособия 21.10.2020, протокол №12 Р е ц е н з е н т ы: каф. оперативной хирургии и топографической анатомии; кан- дидат медицинских наук, доцент В.А.Манулик; кандидат филологических наук, доцент М.Н. Петрова. Жарикова, О. Л. Ж34 Вены большого круга кровообращения = Veins of the systemic circulation : учебно-методическое пособие / О. Л. Жарикова, Л.Д.Чайка. — Минск : БГМУ, 2020. — 29 с. ISBN 978-985-21-0127-1. Содержит сведения о топографии и анастомозах венозных сосудов большого круга кровообраще- ния. Предназначено для студентов 1-го курса медицинского факультета иностранных учащихся, изучающих дисциплину «Анатомия человека» на английском языке. УДК 611.14 (075.8) — 054.6 ББК 28.706я73 ISBN 978-985-21-0127-1 © Жарикова О. Л., Чайка Л.Д., 2020 © УО «Белорусский государственный медицинский университет», 2020 2 INTRODUCTION The cardiovascular system consists of the heart and numerous blood and lymphatic vessels carrying blood and lymph. The major types of the blood ves- sels are arteries, veins, and capillaries. The arteries conduct blood away from the heart; they branch into smaller arteries and, finally, into their smallest branches — arterioles, which give rise to capillaries. The capillaries are the smallest vessels that serve for exchange of gases, nutrients and wastes between blood and tissues.