C12 C13 (1000219, 1000220) 2 Deutschlatin C12 OSSA
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Embryology8 Dr.Ban Facial, Nasal and Palatal Development the External Human Face Develops Between the 4Th and 6Th Weeks of Embryonic Development
Embryology8 Dr.Ban Facial, nasal and palatal development The external human face develops between the 4th and 6th weeks of embryonic development. Facial swellings arise on: -Frontonasal process (2 medial nasal and 2 lateral nasal processes) -First pharyngeal arch (2 mandibular and 2 maxillary processes). By a process of merging and some localized fusion these processes come together to form the continuous surfaces of the external face. Sequence of developmental events : During the 3rd week of development an oropharyngeal membrane (buccopharyngeal ) is first seen at the site of the future face, between the primordium of the heart and the rapidly enlarging primordium of the brain. It is composed of ectoderm externally and endoderm internally. It lies at the beginning of the digestive tract and breaks down during the 4th week in order to form the opening between the future oral cavity (primitive mouth or stomodeum) and the foregut. The oropharyngeal membrane breaks down when it stops growing and it’s non-proliferating cells are gradually pulled apart 1 because they cannot fill the expanding area.The tissues around it expand very rapidly. The face develops from five primordia that appear in the fourth week: the frontonasal prominence, the two maxillary swellings, and the two mandibular swellings. The external face forms from two sources that surround the oropharyngeal membrane 1-Tissues of the frontonasal process that cover the forebrain, predominantly of neural crest origin. 2-The tissues of the first (or mandibular) pharyngeal arch, of mixed mesoderm and neural crest origin Face initially formed by 5 mesenchymal swellings ( prominences): Two mandibular prominences Two maxillary prominences Frontonasal prominence (midline structure is a single structure that is ventral to the forebrain. -
Fossa of Rosenmüller Rosenmüller
Quick Review: Fossa of pharyngeal recess or the fossa of Rosenmüller Rosenmüller. The nasopharynx is a fibromuscular sling suspended from the skull base. The human nasopharynx is mainly derived from the primitive pharynx. It represents the nasal portion of the pharynx behind the nasal cavity and above the free border of the soft palate. The nasopharynx communicates with the nasal cavities through posterior nasal apertures. The choanal orifices along with the posterior edge of the Saggital section of the postnasal space (L E Loh et al 1991) nasal septum form the anterior boundary of the nasopharynx. The The superior constrictor muscle does superior surface of the soft palate not reach the base of skull hence a constitutes its floor and lateral gap (sinus of Morgagni) is velopharyngeal isthum provides created. Fossa of Rosenmüller is a communication between nasopharynx herniation of the nasopharyngeal and oropharynx. The body of mucosa through this deficiency sphenoid, basiocciput and first and between skull base and superior most second cervical vertebrae combine to fibers of the superior constrictor form roof of the nasopharynx. muscle. Through this gap bridged only by the pharyngobasilar fascia, the The part of nasopharynx proximal to eustachian tube enters the the tubal orifice is innervated by the nasopharynx with its two muscles, one maxillary division of the trigeminal (V) on each side. Along the inferior border nerve, and that posterior to the tubal of the two muscles the Fossa of orifice by the glossopharyngeal (IX) Rosenmüller is separated from the nerve. parapharyngeal space by mucosa and pharyngobasilar fascia. Functional studies with contrast and cinefluorography reveal structural The borders of the Fossa of differences between the two Rosenmüller are: components. -
Anatomy, Histology, and Embryology
ANATOMY, HISTOLOGY, 1 AND EMBRYOLOGY An understanding of the anatomic divisions composed of the vomer. This bone extends from of the head and neck, as well as their associ- the region of the sphenoid sinus posteriorly and ated normal histologic features, is of consider- superiorly, to the anterior edge of the hard pal- able importance when approaching head and ate. Superior to the vomer, the septum is formed neck pathology. The large number of disease by the perpendicular plate of the ethmoid processes that involve the head and neck area bone. The most anterior portion of the septum is a reflection of the many specialized tissues is septal cartilage, which articulates with both that are present and at risk for specific diseases. the vomer and the ethmoidal plate. Many neoplasms show a sharp predilection for The supporting structure of the lateral border this specific anatomic location, almost never of the nasal cavity is complex. Portions of the occurring elsewhere. An understanding of the nasal, ethmoid, and sphenoid bones contrib- location of normal olfactory mucosa allows ute to its formation. The lateral nasal wall is visualization of the sites of olfactory neuro- distinguished from the smooth surface of the blastoma; the boundaries of the nasopharynx nasal septum by its “scroll-shaped” superior, and its distinction from the nasal cavity mark middle, and inferior turbinates. The small su- the interface of endodermally and ectodermally perior turbinate and larger middle turbinate are derived tissues, a critical watershed in neoplasm distribution. Angiofibromas and so-called lym- phoepitheliomas, for example, almost exclu- sively arise on the nasopharyngeal side of this line, whereas schneiderian papillomas, lobular capillary hemangiomas, and sinonasal intesti- nal-type adenocarcinomas almost entirely arise anterior to the line, in the nasal cavity. -
Uvula in Snoring and Obstructive Sleep Apnea: Role and Surgical Intervention
Opinion American Journal of Otolaryngology and Head and Neck Surgery Published: 13 Apr, 2020 Uvula in Snoring and Obstructive Sleep Apnea: Role and Surgical Intervention Elbassiouny AM* Department of Otolaryngology, Cairo University, Egypt Abstract Objective: Currently, the consideration of the enlarged uvula as a cause of snoring and Obstructive Sleep Apnea (OSA) lacks data for objective interpretation. This article focused on some concepts on how we can manage the enlarged uvula in cases of snoring and OSA. The purpose of the present article is to discuss the cost benefits of uvular surgery versus its preservation. Conclusion: The direct correlation between the uvula and OSA needs to be reevaluated to maintain a balance between reserving its anatomical and physiological functions and surgically manipulating it as a part of palatopharyngeal surgery, yet further objective studies are needed to reach optimal results. Keywords: Uvula; Snoring; Obstructive sleep apnea Introduction The palatine uvula, usually referred to as simply the uvula, is that part of the soft palate that has an anatomical structure and serves some functions. Anatomically, the uvula, a conic projection from the back edge of the middle of the soft palate, is composed of connective tissue containing several racemose glands, and some muscular fibers, musculus uvulae muscle; arises from the posterior nasal spine and the palatine aponeurosis and inserts into the mucous membrane of the uvula. It contains many serous glands, which produce thin saliva [1]. Physiologically, the uvula serves several functions. First during swallowing, the soft palate and the uvula move together to close off the nasopharynx OPEN ACCESS and prevent food from entering the nasal cavity. -
Approach to the Upper Airway in the Field
Approach to the upper airway in the field Sophie H. Bogers, BVSc, MVSc, PhD, DACVS-LA Session Description: This session will provide a general overview of approaches to the diagnosis of upper airway conditions. The use of endoscopy, radiography and ultrasound to distinguish between commonly confused conditions will be discussed. The indications and techniques for field upper airway surgery including tracheostomy and sinus trephination will be discussed. Speaker Notes: 1. The diagnostic approach to the upper airway case often follows a similar pattern. The results of the history, physical examination and resting endoscopy will allow you to focus more on techniques specific to the sinus or nasal passages or the larynx and pharynx 2. Endoscopy helps you to pin-point what structures in the upper airway are affected. There are exceptions if you don’t have an endoscope e.g. for suspected dental sinusitis that causes foul smelling nasal discharge an oral examination can be done first and if no obvious occlusal abnormalities are seen then endoscopy can be performed after to confirm that the drainage is coming from the paranasal sinuses. a. The endoscopic examination should be thorough with assessment of all of the structures below: i. Larynx (make swallow several times – see EE/subepiglottic cyst/abduction of arytenoid maximal) 1. Assessment of larynx when not sedated (may sedate for remainder) ii. Trachea iii. Dorsal pharyngeal recess and pharynx iv. Guttural pouch 1 v. Ethmoid turbinates vi. Sinus drainage angle vii. Nasal passage 1 – nasal septum, ventral conchal bulla viii. Change sides 1. Guttural pouch 2 2. Nasal passage 2 b. -
A Case of Pharynx Syphilis at Secondary Stage
Case Report Annals of Clinical Case Reports Published: 03 Mar, 2017 A Case of Pharynx Syphilis at Secondary Stage XU Wen, YU Shaoqing* and JIN Ling Department of Otolaryngology, Tongji Hospital, Tongji University Abstract A 48-year-old female patient had throat discomfort and slightly pain for three month. Her symptom was getting aggravated and repetitive after being misdiagnosed with acute tonsillitis. Later, we found patient’s mucous membrane of double tonsil, palatoglossus arch, palatopharyngeus arch, palatine uvula was covered by white pseudo-membrane. It was suspected as syphilis of the pharynx. Rapid Plasma Reagin (RPR) and Treponema Pallidum Hemagglutination Assay (TPHA) tests confirmed the pharynx syphilis. After the patient went through the anti-syphilitic remedy, her symptoms and signs completely disappeared. During the 24-month routinely follow-up, no relapse was observed and the pharynx lesion disappear accompany with negative RPR tests results. Keywords: Pharynx; Syphilis; Secondary syphilis Introduction Syphilis is a sexually transmitted disease caused by the spirochete Treponema pallidum. Syphilis could affect any human organs and tissues and trigger various manifestations. The incubation period of Treponema pallidum is between 15 and 90 days. Recently, the incidence of syphilis is increased rapidly in China, and it is ranked number three among infectious diseases in China, only preceded by tuberculosis and hepatitis. China economy development, imbalance of male and female population, emergence of numerous migrant workers from rural area, the social acceptance of sexual services, and the growth in number of male homosexuality are the major attributions to the increase in incidence rate of syphilis [1]. Such incidence rate grew from 6.43 percent of every one hundred thousand population in 2000 to 32.86 percent in 2013 [2]. -
Radiological Profiles of Nasopharyngeal Anatomy As Seen
International Journal of Otorhinolaryngology and Head and Neck Surgery Rajamani SK et al. Int J Otorhinolaryngol Head Neck Surg. 2019 Nov;5(6):1489-1495 http://www.ijorl.com pISSN 2454-5929 | eISSN 2454-5937 DOI: http://dx.doi.org/10.18203/issn.2454-5929.ijohns20194604 Original Research Article Radiological profiles of nasopharyngeal anatomy as seen in computed tomography scans of normal patients undergoing brain scans for other neurological problems in Konkani population Santhosh Kumar Rajamani1, Nayanna Karodpati2*, Dilesh A. Mogre1, Rashmi Prashant2 1Department of ENT, B.K.L Walawalkar Rural Medical College, Chiplun, Ratnagiri, Maharashtra, India 2Department of ENT, D Y Patil Medical College, Pune, Maharashtra, India Received: 28 August 2019 Revised: 05 October 2019 Accepted: 07 October 2019 *Correspondence: Dr. Nayanna Karodpati, E-mail: [email protected] Copyright: © the author(s), publisher and licensee Medip Academy. This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. ABSTRACT Background: Nasopharyngeal carcinoma arises from interactions between underlying genetic and racial predilection and variety environmental factors. It is locally aggressive and presents with occult cervical nodal metastasis. A thorough understanding of radiological regional anatomy of the nasopharynx in Indians particularly Konkani population is important for early detection of nasopharyngeal carcinoma. Methods: Routine computed tomography of brain, head and neck for other neurological problems like stroke clearly delineates the loco-regional anatomy of the nasopharynx. Computed tomography (CT) images stored in the computer system were studied to delineate the normal loco-regional anatomy of nasopharynx with special reference to anatomical structure of fossa of Rosenmueller and to find out the normal dimensions of nasopharynx in Konkani population. -
Nose, Nasal Cavity & Paranasal Sinuses & Pharynx
Nose, Nasal cavity, Paranasal Sinuses & Pharynx Objectives . At the end of the lecture, the students should be able to: . Describe the boundaries of the nasal cavity. Describe the nasal conchae and meati. Demonstrate the openings in each meatus. Describe the paranasal sinuses and their functions . Describe the pharynx and its parts Nose . The external root (anterior ) nares or nostrils, lead to the tip nasal cavity. ala septum external nares Formed above by: 1 Bony skeleton 2 . Formed 3 below by plates of hyaline cartilage. Nasal Cavity . Extends from the external (anterior) nares to the posterior nares (choanae). Divided into right & left halves by the nasal septum. Each half has a: . Roof . Lateral wall . Medial wall (septum) . Floor Roof . Narrow & formed (from 3 2 4 behind forward) by the: 1 1. Body of sphenoid. 2. Cribriform plate of ethmoid bone. 3. Frontal bone. 4. Nasal bone & cartilage Floor • Separates it from the oral cavity. • Formed by the hard (bony) palate. Medial Wall (Nasal Septum) . Osteocartilaginous partition. Formed by: 1. Perpendicular plate of ethmoid 1 bone. 3 2. Vomer. 2 3. Septal cartilage. Lateral Wall . Shows three horizontal bony projections, the superior, middle & inferior conchae . The cavity below each concha is called a meatus and are named as superior, middle & inferior corresponding to the conchae. The small space above the superior concha is the sphenoethmoidal recess. The conchae increase the surface area of the nasal cavity. The recess & meati receive the openings of the: .Paranasal sinuses. .Nasolacrimal duct. Nasal mucosa – Olfactory : – It is delicate and contains olfactory nerve cells. It is present in the upper part of nasal cavity: . -
Co-Relation of Clinical and Histologic Grade with Soft Palate Morphology in Oral Submucous Fibrosis Patients: a Histologic and Cephalometric Study
_______________________________________________________________________ORIGINAL RESEARCH Co-relation of clinical and histologic grade with soft palate morphology in oral submucous fibrosis patients: A histologic and cephalometric study Tekchandani V1, Thakur M2, Palve D3, Mohale D4, Gupta R5 ABSTRACT 1,4,5Postgraduate student, Dept. of Introduction: Oral submucous fibrosis (OSMF) is a chronic progressive Oral Pathology and Microbiology, precancerous condition with an alarming prevalence in India. Prevention and early Swargiya Dadasaheb Kalmegh diagnosis of this condition can not only nip it in the bud, but also curb the menace Smruti Dental College and Hospital, of malignant transformation of this disease. OSMF is believed to produce fibrotic Nagpur changes beginning in the soft palate and faucial pillars, progressing anteriorly in 2Professor and Head, Dept. of Oral Pathology and Microbiology, the oral cavity. Swargiya Dadasaheb Kalmegh Aim: The present study was carried out to evaluate and correlate the morphology Smruti Dental College and Hospital, of soft palate in Oral submucous fibrosis (OSMF) patients to the clinical and Nagpur histopathologic grade, using digital lateral cephalogram. 3Professor, Dept. of Oral Pathology Method: A total of 80 patients (40 OSMF and 40 Control) were evaluated for soft and Microbiology, Swargiya palatal morphology. The antero-posterior and supero-inferior dimensions of soft Dadasaheb Kalmegh Smruti Dental palate were measured on digital lateral cephalogram, categorized as Type 1 to Type College and Hospital, Nagpur 6 and were then compared to clinical and histopathologic grade. Results: In our study, Type 1 (leaf-shaped) soft palate was found to be the most common followed by Type 6 (crook-shaped) and Type 3 (butt-like) varieties. -
Anatomy of the Nasal Cavity and Pharynx Respiratory Block - Lecture 2
Anatomy of the nasal cavity and pharynx Respiratory Block - Lecture 2 Color index: Important In male’s slides only In female’s slides only Extra information, explanation Doctors notes Editing File Objectives: ● Describe the boundaries of the nasal cavity. ● Describe the nasal conchae and meati. ● Demonstrate the openings in each meatus. ● Describe the paranasal sinuses and their functions ● Describe the pharynx and its parts Nose & Nasal cavity Nose: The external (anterior) nares or nostrils, lead to the nasal cavity. 1 - Formed above by: Nasal Cavity: Bony skeleton. - Extends from the external - Formed below by: (anterior) nares to the posterior plates of hyaline cartilage. 2 nares (choanae). - Divided into right & left halves by the nasal septum. - Each half has a: 1- Roof 2- Lateral wall 3- Medial wall (septum) 4- Floor Floor Roof - Separates it from the oral cavity. Narrow & formed ( from behind forward) by the: - Formed by the hard (bony) palate. 1- Body of sphenoid. Formed by: 2- Cribriform plate of ethmoid bone. - Nasal (upper)surface of the hard (bony) palate: 3- Frontal bone. - Palatine process of maxilla, anteriorly. 4- Nasal bone & cartilage. - Horizontal plate of the palatine bone, posteriorly. 2 1 Lateral Wall Medial Wall (Nasal Septum) 4 3 - Shows three horizontal bony projections, the superior, middle & inferior conchae - Osteocartilaginous partition. - The cavity below each concha is called a meatus and are named as superior, middle & inferior corresponding to the - Formed by: conchae. 1- Perpendicular plate of ethmoid bone. - The small space above the superior concha is the 2- Vomer. sphenoethmoidal recess. 3- Septal cartilage. - The conchae increase the surface area of the nasal cavity. -
Cavitas Oris) Is the Initial Part of the Alimentary Or Digestive Tract
ANATOMY AND HISTOLOGY OF THE ORAL CAVITY The oral cavity (cavitas oris) is the initial part of the alimentary or digestive tract. It is boarded by lips on the front, by cheeks on the sides, by the hard and soft palates at the top, by pharynx at the back part and by the mouth bottom at the bottom. 1. Upper lip 7. Tongue 2. Upper gum 8. Mandible teeth 3. Upper-jaw-teeth 9. Lower gum 4. Hard palate 10. Lower lip 5. Soft palate uvula 11. Cheek 6. Tonsils The oral cavity is a combination of organs and tissues performing a set of functions: 1. Chewing – performed by teeth 2. Speaking – a process with participation of tongue, teeth, lips and the palates 3. Digestive - due to enzymes of saliva deconstruction of some substance takes place in the oral cavity, and the permeability of mucous membrane helps to absorb the stuff. 4. Protecting - is performed with the help of some substances and cells, existing in the saliva (lysozyme, interferon, leucocyte, etc.), as well as by selective permeability of the epithelium of mucous membrane. Tonsils also have great importance in the provision of this function (palatal, pharyngeal, lingual). 5. Sensitive - feeling of pain, as well as felling of taste and tactile feeling are provided by big amount of receptors and taste sensitive papilla of mucous membrane of oral cavity. The oral cavity is divided by teeth arch into 2 parts: a. frontal or vestibular part of the mouth (vestibulum oris), which is the space between lips and cheeks from outside and teeth and gingiva from inside. -
Determinants of the Practice of Traditional Uvulectomy As Seen at Thika District Hospital: a Survey on Children Below Five Years
TITLE: DETERMINANTS OF THE PRACTICE OF TRADITIONAL UVULECTOMY AS SEEN AT THIKA DISTRICT HOSPITAL: A SURVEY ON CHILDREN BELOW FIVE YEARS. A Disertation Submitted in part fulfillment of the requirement for the degree of Masters of Medicine in Ear, Nose and Throat-Head and Neck surgery in the University of Nairobi 2005 Principal Investigator : Dr Samuel Kariuki Ngugi University of Nairobi College of Health sciences Supervisor Prof Isaac M. Macharia MBCHB, Mmed, ENT-HNS Associate Professor, Department of ENT Head and Neck Surgery University of Nairobi College of health sciences University of NAIROBI Library u c r ' • C l ~'~N , ^ Q tily DEDICATION To my wife Polyne and my two sons Elias and Austine for bearing with me and giving me the reasons to soldier on despite hardships APPRECIATION Special thanks go to my teachers for encouraging me and constantly correcting me whenever I strayed from the path; To my supervisor for guiding me all the way through to the completion of this work; The management, Thika district hospital for allowing me to do the research in their institution; Mr Kubai, paediatric clinical officer in Thika hospital for assisting me identify the uvulectomists and the children. u ^ e p * l r ^ 0 , SJ Ty OF lc ^ TABLE OF CONTENTS Declaration 2 A b stract 3 Introduction 4 Literature Review 5 i. A n ato m y 6 ii. Functions 7 iii. Indications 7 iv. Epidemiology 9 v. Procedure 9 vi. Complications 10 Aims and Objectives 13 Methodology 14 Sample size 15 Data management 16 R esults 17 D iscu ssio n 29 Bibliography 33 A p p e n d ix i.