Titel NAV + Total*
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Sound and the Ear Chapter 2
© Jones & Bartlett Learning, LLC © Jones & Bartlett Learning, LLC NOT FOR SALE OR DISTRIBUTION NOT FOR SALE OR DISTRIBUTION Chapter© Jones & Bartlett 2 Learning, LLC © Jones & Bartlett Learning, LLC NOT FOR SALE OR DISTRIBUTION NOT FOR SALE OR DISTRIBUTION Sound and the Ear © Jones Karen &J. Kushla,Bartlett ScD, Learning, CCC-A, FAAA LLC © Jones & Bartlett Learning, LLC Lecturer NOT School FOR of SALE Communication OR DISTRIBUTION Disorders and Deafness NOT FOR SALE OR DISTRIBUTION Kean University © Jones & Bartlett Key Learning, Terms LLC © Jones & Bartlett Learning, LLC NOT FOR SALE OR Acceleration DISTRIBUTION Incus NOT FOR SALE OR Saccule DISTRIBUTION Acoustics Inertia Scala media Auditory labyrinth Inner hair cells Scala tympani Basilar membrane Linear scale Scala vestibuli Bel Logarithmic scale Semicircular canals Boyle’s law Malleus Sensorineural hearing loss Broca’s area © Jones & Bartlett Mass Learning, LLC Simple harmonic© Jones motion (SHM) & Bartlett Learning, LLC Brownian motion Membranous labyrinth Sound Cochlea NOT FOR SALE OR Mixed DISTRIBUTION hearing loss Stapedius muscleNOT FOR SALE OR DISTRIBUTION Compression Organ of Corti Stapes Condensation Osseous labyrinth Tectorial membrane Conductive hearing loss Ossicular chain Tensor tympani muscle Decibel (dB) Ossicles Tonotopic organization © Jones Decibel & hearing Bartlett level (dB Learning, HL) LLC Outer ear © Jones Transducer & Bartlett Learning, LLC Decibel sensation level (dB SL) Outer hair cells Traveling wave theory NOT Decibel FOR sound SALE pressure OR level DISTRIBUTION -
Anatomical Changes and Audiological Profile in Branchio-Oto-Renal
THIEME 68 Review Article Anatomical Changes and Audiological Profile in Branchio-oto-renal Syndrome: A Literature Review Tâmara Andrade Lindau1 Ana Cláudia Vieira Cardoso1 Natalia Freitas Rossi1 Célia Maria Giacheti1 1 Department of Speech Pathology, Universidade Estadual Paulista - Address for correspondence Célia Maria Giacheti, PhD, Department of UNESP, Marília, São Paulo, Brazil Speech Pathology, Universidade Estadual Paulista UNESP, Av. Hygino Muzzi Filho, 737, Marília, São Paulo 14525-900, Brazil Int Arch Otorhinolaryngol 2014;18:68–76. (e-mail: [email protected]). Abstract Introduction Branchio-oto-renal (BOR) syndrome is an autosomal-dominant genetic condition with high penetrance and variable expressivity, with an estimated prevalence of 1 in 40,000. Approximately 40% of the patients with the syndrome have mutations in the gene EYA1, located at chromosomal region 8q13.3, and 5% have mutations in the gene SIX5 in chromosome region 19q13. The phenotype of this syndrome is character- ized by preauricular fistulas; structural malformations of the external, middle, and inner ears; branchial fistulas; renal disorders; cleft palate; and variable type and degree of hearing loss. Aim Hearing loss is part of BOR syndrome phenotype. The aim of this study was to present a literature review on the anatomical aspects and audiological profile of BOR syndrome. Keywords Data Synthesis Thirty-four studies were selected for analysis. Some aspects when ► branchio-oto-renal specifying the phenotype of BOR syndrome are controversial, especially those issues syndrome related to the audiological profile in which there was variability on auditory standard, ► BOR syndrome hearing loss progression, and type and degree of the hearing loss. -
Head & Neck Surgery Course
Head & Neck Surgery Course Parapharyngeal space: surgical anatomy Dr Pierfrancesco PELLICCIA Pr Benjamin LALLEMANT Service ORL et CMF CHU de Nîmes CH de Arles Introduction • Potential deep neck space • Shaped as an inverted pyramid • Base of the pyramid: skull base • Apex of the pyramid: greater cornu of the hyoid bone Introduction • 2 compartments – Prestyloid – Poststyloid Anatomy: boundaries • Superior: small portion of temporal bone • Inferior: junction of the posterior belly of the digastric and the hyoid bone Anatomy: boundaries Anatomy: boundaries • Posterior: deep fascia and paravertebral muscle • Anterior: pterygomandibular raphe and medial pterygoid muscle fascia Anatomy: boundaries • Medial: pharynx (pharyngobasilar fascia, pharyngeal wall, buccopharyngeal fascia) • Lateral: superficial layer of deep fascia • Medial pterygoid muscle fascia • Mandibular ramus • Retromandibular portion of the deep lobe of the parotid gland • Posterior belly of digastric muscle • 2 ligaments – Sphenomandibular ligament – Stylomandibular ligament Aponeurosis and ligaments Aponeurosis and ligaments • Stylopharyngeal aponeurosis: separates parapharyngeal spaces to two compartments: – Prestyloid – Poststyloid • Cloison sagittale: separates parapharyngeal and retropharyngeal space Aponeurosis and ligaments Stylopharyngeal aponeurosis Muscles stylohyoidien Stylopharyngeal , And styloglossus muscles Prestyloid compartment Contents: – Retromandibular portion of the deep lobe of the parotid gland – Minor or ectopic salivary gland – CN V branch to tensor -
Human Anatomy As Related to Tumor Formation Book Four
SEER Program Self Instructional Manual for Cancer Registrars Human Anatomy as Related to Tumor Formation Book Four Second Edition U.S. DEPARTMENT OF HEALTH AND HUMAN SERVICES Public Health Service National Institutesof Health SEER PROGRAM SELF-INSTRUCTIONAL MANUAL FOR CANCER REGISTRARS Book 4 - Human Anatomy as Related to Tumor Formation Second Edition Prepared by: SEER Program Cancer Statistics Branch National Cancer Institute Editor in Chief: Evelyn M. Shambaugh, M.A., CTR Cancer Statistics Branch National Cancer Institute Assisted by Self-Instructional Manual Committee: Dr. Robert F. Ryan, Emeritus Professor of Surgery Tulane University School of Medicine New Orleans, Louisiana Mildred A. Weiss Los Angeles, California Mary A. Kruse Bethesda, Maryland Jean Cicero, ART, CTR Health Data Systems Professional Services Riverdale, Maryland Pat Kenny Medical Illustrator for Division of Research Services National Institutes of Health CONTENTS BOOK 4: HUMAN ANATOMY AS RELATED TO TUMOR FORMATION Page Section A--Objectives and Content of Book 4 ............................... 1 Section B--Terms Used to Indicate Body Location and Position .................. 5 Section C--The Integumentary System ..................................... 19 Section D--The Lymphatic System ....................................... 51 Section E--The Cardiovascular System ..................................... 97 Section F--The Respiratory System ....................................... 129 Section G--The Digestive System ......................................... 163 Section -
Deep Neck Infections 55
Deep Neck Infections 55 Behrad B. Aynehchi Gady Har-El Deep neck space infections (DNSIs) are a relatively penetrating trauma, surgical instrument trauma, spread infrequent entity in the postpenicillin era. Their occur- from superfi cial infections, necrotic malignant nodes, rence, however, poses considerable challenges in diagnosis mastoiditis with resultant Bezold abscess, and unknown and treatment and they may result in potentially serious causes (3–5). In inner cities, where intravenous drug or even fatal complications in the absence of timely rec- abuse (IVDA) is more common, there is a higher preva- ognition. The advent of antibiotics has led to a continu- lence of infections of the jugular vein and carotid sheath ing evolution in etiology, presentation, clinical course, and from contaminated needles (6–8). The emerging practice antimicrobial resistance patterns. These trends combined of “shotgunning” crack cocaine has been associated with with the complex anatomy of the head and neck under- retropharyngeal abscesses as well (9). These purulent col- score the importance of clinical suspicion and thorough lections from direct inoculation, however, seem to have a diagnostic evaluation. Proper management of a recog- more benign clinical course compared to those spreading nized DNSI begins with securing the airway. Despite recent from infl amed tissue (10). Congenital anomalies includ- advances in imaging and conservative medical manage- ing thyroglossal duct cysts and branchial cleft anomalies ment, surgical drainage remains a mainstay in the treat- must also be considered, particularly in cases where no ment in many cases. apparent source can be readily identifi ed. Regardless of the etiology, infection and infl ammation can spread through- Q1 ETIOLOGY out the various regions via arteries, veins, lymphatics, or direct extension along fascial planes. -
Ligaments -Two-Layered Folds of Peritoneum That Attached the Lesser Mobile Solid Viscera to the Abdominal Wall
Ingegneria delle tecnologie per la salute Fondamenti di anatomia e istologia aa. 2019-20 Lesson 7. Digestive system and peritoneum Peritoneum, abdominal vessel and spleen PERITONEUM: General features = a thin serous membrane that line walls of abdominal and pelvic cavities and cover organs within these cavities •Parietal peritoneum -lines walls of abdominal and pelvic cavities •Visceral peritoneum -covers organs •Peritoneal cavity - potential space between parietal and visceral layer of peritoneum, in male, is a closed sac, but in female, there is a communication with exterior through uterine tubes, uterus, and vagina Function • Secretes a lubricating serous fluid that continuously moistens associated organs • Absorb • Support viscera Peritoneum Histology The peritoneum is a serosal membrane that consists of a single layer of mesothelial cells and is supported by a basement membrane. The layer is attached to the body wall and viscera by a glycosaminoglycan matrix that contains collagen fibers, vessels, nerves, macrophages, and fat cells. relationship between viscera and peritoneum • Intraperitoneal viscera -viscera completely surrounded by peritoneum, example, stomach, superior part of duodenum, jejunum, ileum, cecum, vermiform appendix, transverse and sigmoid colons, spleen and ovary • Interperitoneal viscera -most part of viscera surrounded by peritoneum, example, liver, gallbladder, ascending and descending colon, upper part of rectum, urinary bladder and uterus • Retroperitoneal viscera -some organs lie on the posterior abdominal -
Esophagopharyngeal Perforation and Prevertebral Abscess After Anterior Cervical Discectomy and Fusion: a Case Report
232 Case Report Esophagopharyngeal perforation and prevertebral abscess after anterior cervical discectomy and fusion: a case report Jay K. Shah1^, Filippo Romanelli1, Jason Yang2, Naina Rao3, Michael C. Gerling4 1Division of Orthopedic Surgery, Department of Orthopedic Surgery, Jersey City Medical Center – Robertwood Johnson Barnabas Health, Jersey City, NJ, USA; 2Robert Wood Johnson University Hospital, RWJBarnabas Health, New Brunswick, NJ, USA; 3New York Grossman School of Medicine, NYU Langone Health, New York, NY, USA; 4Chief of Spine Surgery, Department of Orthopaedic Surgery, New York University Langone Hospital-Brooklyn, Tribeca, New York, NY, USA Correspondence to: Jay K. Shah, DO. Division of Orthopedic Surgery, Department of Orthopedic Surgery, Jersey City Medical Center – Robertwood Johnson Barnabas Health, 355 Grand Street, Jersey City, NJ 07302, USA. Email: [email protected]. Abstract: Anterior cervical discectomy and fusion (ACDF) represents one of the most commonly performed spine surgeries. Dysphagia secondary to esophageal injury during retraction is one of the most common complications, and usually leads to self-limiting dysphagia. However, actual perforation and violation of the esophageal tissue is much rarer and can lead to delayed deep infections. Prevertebral abscess’ are one of the most feared complications after ACDF, as they can lead to severe tissue swelling, osteomyelitis, hardware failure, and even death. Due to their rarity, a gold standard of workup and treatment is still unknown. A healthy 47-year-old female presents 9 months after a C4–C7 ACDF done at an outside institution with a large prevertebral abscess, osteomyelitis, hardware failure, and pseudoarthrosis secondary to esophagopharyngeal defect and prominent hardware. Overall, the patient underwent eight surgeries, and required an extended course of intravenous (IV) antibiotics, multiple diagnostic procedures, and complex soft tissue coverage using an anterolateral thigh free flap. -
Head and Neck Specimens
Head and Neck Specimens DEFINITIONS AND GENERAL COMMENTS: All specimens, even of the same type, are unique, and this is particularly true for Head and Neck specimens. Thus, while this outline is meant to provide a guide to grossing the common head and neck specimens at UAB, it is not all inclusive and will not capture every scenario. Thus, careful assessment of each specimen with some modifications of what follows below may be needed on a case by case basis. When in doubt always consult with a PA, Chief/Senior Resident and/or the Head and Neck Pathologist on service. Specimen-derived margin: A margin taken directly from the main specimen-either a shave or radial. Tumor bed margin: A piece of tissue taken from the operative bed after the main specimen has been resected. This entire piece of tissue may represent the margin, or it could also be specifically oriented-check specimen label/requisition for any further orientation. Margin status as determined from specimen-derived margins has been shown to better predict local recurrence as compared to tumor bed margins (Surgical Pathology Clinics. 2017; 10: 1-14). At UAB, both methods are employed. Note to grosser: However, even if a surgeon submits tumor bed margins separately, the grosser must still sample the specimen margins. Figure 1: Shave vs radial (perpendicular) margin: Figure adapted from Surgical Pathology Clinics. 2017; 10: 1-14): Red lines: radial section (perpendicular) of margin Blue line: Shave of margin Comparison of shave and radial margins (Table 1 from Chiosea SI. Intraoperative Margin Assessment in Early Oral Squamous Cell Carcinoma. -
ANATOMY of EAR Basic Ear Anatomy
ANATOMY OF EAR Basic Ear Anatomy • Expected outcomes • To understand the hearing mechanism • To be able to identify the structures of the ear Development of Ear 1. Pinna develops from 1st & 2nd Branchial arch (Hillocks of His). Starts at 6 Weeks & is complete by 20 weeks. 2. E.A.M. develops from dorsal end of 1st branchial arch starting at 6-8 weeks and is complete by 28 weeks. 3. Middle Ear development —Malleus & Incus develop between 6-8 weeks from 1st & 2nd branchial arch. Branchial arches & Development of Ear Dev. contd---- • T.M at 28 weeks from all 3 germinal layers . • Foot plate of stapes develops from otic capsule b/w 6- 8 weeks. • Inner ear develops from otic capsule starting at 5 weeks & is complete by 25 weeks. • Development of external/middle/inner ear is independent of each other. Development of ear External Ear • It consists of - Pinna and External auditory meatus. Pinna • It is made up of fibro elastic cartilage covered by skin and connected to the surrounding parts by ligaments and muscles. • Various landmarks on the pinna are helix, antihelix, lobule, tragus, concha, scaphoid fossa and triangular fossa • Pinna has two surfaces i.e. medial or cranial surface and a lateral surface . • Cymba concha lies between crus helix and crus antihelix. It is an important landmark for mastoid antrum. Anatomy of external ear • Landmarks of pinna Anatomy of external ear • Bat-Ear is the most common congenital anomaly of pinna in which antihelix has not developed and excessive conchal cartilage is present. • Corrections of Pinna defects are done at 6 years of age. -
Lipoma on the Antitragus of the Ear Hyeree Kim, Sang Hyun Cho, Jeong Deuk Lee, Hei Sung Kim* Department of Dermatology, Incheon St
www.symbiosisonline.org Symbiosis www.symbiosisonlinepublishing.com Letter to Editor Clinical Research in Dermatology: Open Access Open Access Lipoma on the antitragus of the ear Hyeree Kim, Sang Hyun Cho, Jeong Deuk Lee, Hei Sung Kim* Department of Dermatology, Incheon St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea Received: February 29, 2016; Accepted: March 25, 2016; Published: March 30, 2016 *Corresponding author: Hei Sung Kim, Professsor, Department of Dermatology, Incheon St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, 56 Donsuro, Bupyeong-gu, Incheon, 403-720, Korea. Tel: 82-32-280-5100; Fax: 82-2-506-9514; E-mail: [email protected] on the ear, most are located in internal auditory canals, where Keywords: Auricular Lipoma; Ear helix lipoma; Cartilagiouslipoma; Antitragallipoma approximately 150 cases have been reported in the literature worldwide [3]. Lipomas rarely originate from the external ear where only a few cases have been reported from the ear lobule Dear Editor, [4], and a only three cases from the ear helix [1,6,7] Bassem et al. Lipomas are the most common soft-tissue neoplasm [1, reported a case of lipoma of the pinnal helix on the 82-year-old 5]. Although they affect individuals of a wide age range, they woman, which presented a single, 3x3x2cm-sized, pedunculated occur predominantly in adults between the ages of 40 and 60 mass [1]. Mohammad and Ahmed reported two cases of years [5]. They most commonly present as painless, slowly cartiligious lipoma, one is conchal lipoma and the other is helical enlarging subcutaneous mass on the trunk, neck, or extremities. -
Neurosensory Development in the Zebrafish Inner Ear
NEUROSENSORY DEVELOPMENT IN THE ZEBRAFISH INNER EAR A Dissertation by SHRUTI VEMARAJU Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY December 2011 Major Subject: Biology NEUROSENSORY DEVELOPMENT IN THE ZEBRAFISH INNER EAR A Dissertation by SHRUTI VEMARAJU Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY Approved by: Chair of Committee, Bruce B. Riley Committee Members, Mark J. Zoran Brian D. Perkins Rajesh C. Miranda Head of Department Uel Jackson McMahan December 2011 Major Subject: Biology iii ABSTRACT Neurosensory Development in the Zebrafish Inner Ear. (December 2011) Shruti Vemaraju, B.Tech., Guru Gobind Singh Indraprastha University Chair of Advisory Committee: Dr. Bruce B. Riley The vertebrate inner ear is a complex structure responsible for hearing and balance. The inner ear houses sensory epithelia composed of mechanosensory hair cells and non-sensory support cells. Hair cells synapse with neurons of the VIIIth cranial ganglion, the statoacoustic ganglion (SAG), and transmit sensory information to the hindbrain. This dissertation focuses on the development and regulation of both sensory and neuronal cell populations. The sensory epithelium is established by the basic helix- loop-helix transcription factor Atoh1. Misexpression of atoh1a in zebrafish results in induction of ectopic sensory epithelia albeit in limited regions of the inner ear. We show that sensory competence of the inner ear can be enhanced by co-activation of fgf8/3 or sox2, genes that normally act in concert with atoh1a. -
Organum Vestibulocochleare INTERNAL EAR MIDDLE EAR EXTERNAL EAR PETROSAL BONE- Eq EXTERNAL EAR AURICLE
EAR organum vestibulocochleare INTERNAL EAR MIDDLE EAR EXTERNAL EAR PETROSAL BONE- Eq EXTERNAL EAR AURICLE The external ear plays the role of an acoustic antenna: auricle the auricle (together with the head) collects and focuses sound waves, the ear canal act as a resonator. tympanic membrane anular cartilage meatus acusticus externus EXTERNAL EAR EXTERNAL EAR AURICLE scutiform cartilage Auricular muscles: -Dorsal -Ventral -Rostral -Caudal EXTERNAL EAR MEATUS ACUSTICUS EXTERNUS auricular cartilage vertical canal auditory ossicles horizontal cochlea canal auditory tube tympanic tympanic eardrum bulla cavity tympanic membrane MIDDLE EAR Auditory ossicles STAPES INCUS Tympanic cavity: (anvil) (stirrup) - epitympanium - mesotympanium - hypotympanium MALLEUS (hammer) auditory vestibular window- ossicles or oval window through which mechanical stimuli (transmitted by the auditory ossicles) enter the epitympanic internal ear for translation recess into nerve impulses auditory tube (Eustachian tube) cochlear window- or round window tympanic cavity bulla tympanica through which the vibration of the perilympha is absorbed MIDDLE EAR MIDDLE EAR GUTTURAL POUCH- Eq MIDDLE EAR AUDITORY OSSICLES head INCUS processus rostralis (stirrup) STAPES processus muscularis (anvil) manubrium short crus body MALLEUS (hammer) Two muscles of the ossicles: long crus m. tensor tympani- n. tensoris tympani ex. n. base mandibularis (footplate) m. stapedius- n. stapedius ex. n. facialis crus The muscles fix the bones and protect the cochlea crus against the harmful effects