Anatomy and function of extraocular muscles

Slides:



Advertisements
Similar presentations
Robert P. Rutstein, OD Claudio Busettini, PhD.
Advertisements

Acromion P. Spine Glenoid Cavity Inferior Angle.
THE SHOULDER GIRDLE Chapter 4.
Eye Motor Physiology Dr Besharati MD Axes of Fick, Center of Rotation A movement of the eye around a theoretical center of rotation is described with.
Body Organization Review. Planes of the Body Transverse plane Cuts the body into superior and inferior halves. 2 movements are internal rotation and external.
DIFFERENCES BETWEEN ANATOMICAL DESCRIPTIONS OF ACTIONS OF EXTRAOCULAR
Muscular Movement Terminology. Descriptions of Muscle Movements 1.) During Flexion of Elbow 1. Prime mover (agonist) ex. When biceps brachii contracts.
 Clare Hargreaves-Norris Anatomical Terms Access H.E. Human Biology.
Date of download: 5/28/2016 Copyright © 2016 American Medical Association. All rights reserved. From: Effect of Ocular Torsion on A and V Patterns and.
Eye Anatomy and Function. Cornea Transmission of light Refraction of light: +42 dioptres.
Padmaja Sudhakar MD Asst Professor Neurology University of Kentucky
Ocular Motor Nerves Visual Pathways – Neuroanatomy – for grade III medical students 蔡子同 成大醫院神經科 2012/05/09.
Amblyopia and Strabismus
(A) Lateral view of the vertebral column, showing the levels at which the various nerve roots exit; nerves exit above their numbered vertebral body in.
From: Magnetic Resonance Imaging of Optic Nerve Traction During Adduction in Primary Open-Angle Glaucoma With Normal Intraocular Pressure Invest. Ophthalmol.
Traditional view of brain areas involved in language function including the language comprehension (Wernicke) area, the motor speech (Broca) area, and.
The extraocular muscles are the six muscles that control movement of the eye and one muscle that controls eyelid elevation (levator.
Oculomotor Nerve, Trochlear Nerve Abducens nerve
Using the stethoscope to auscultate the eye and head
Common causes of dementia based on age at presentation and rate of progression. “Mixed” refers to combined Alzheimer disease and vascular dementia. Totals.
Chapter 2 Anatomical Movement Terminology.
From: Palisade Endings Are a Constant Feature in the Extraocular Muscles of Frontal-Eyed, But Not Lateral-Eyed, Animals Invest. Ophthalmol. Vis. Sci..
Anatomy of the ankle. (a) Talocrural (ankle) joint (b) Subtalar joint (c) Ligaments of the ankle-lateral view (d) Ligaments of the ankle-medial view Source:
Vitamin B12 deficiency myelopathy in a 30-year-old woman, wheelchair-bound owing to an 18-month history of progressive myelopathy. B12 level: 60 pg/mL.
Testing the radial nerve. (A) Sensory distribution
Repositioning treatment for benign positional vertigo resulting from canalolithiasis. In the example shown, repositioning maneuvers are used to move endolymphatic.
Eye movements : Anatomy and physiology
Test for orthostatic hypotension
Strabismus Introduction
(A) Lateral view of the vertebral column, showing the levels at which the various nerve roots exit; nerves exit above their numbered vertebral body in.
Left partial third nerve palsy with ptosis (A), reduced adduction (B), elevation (C), and depression (D) but normal abduction (E) of the left eye. Source:
Reverse total shoulder arthroplasty
(A) Asymmetric movements of facial muscles, inability to close right eye (but not left), deviated angle of the mouth and flattening of the right nasolabial.
Motor unit action potentials recorded with a concentric needle electrode. (A) Normal potential. (B) Long-duration polyphasic potential (shown twice). (C)
FROM FRANKLYN-MILLER A. ET AL. CLINICAL SPORTS ANATOMY
(A) Lateral view of the vertebral column, showing the levels at which the various nerve roots exit; nerves exit above their numbered vertebral body in.
Temporal patterns of headache
Illustration of ways regression lines can differ
A. External female genitalia. B
Patellar taping techniques (a) Patellar taping (medial glide)
Skew Deviation Revisited
Body Organization Review.
Temporal patterns of headache
(Reproduced with permission from Amato AA, Russell JA
OCULAR MOTOR NERVE PALSIES
Papilledema means optic disc edema from raised intracranial pressure
Types of hearing aids. Left, in-the-ear; center, behind the ear; right, in-the-canal. Source: Assessment and Management of Auditory Disorders and Tinnitus,
(A) Asymmetric movements of facial muscles, inability to close right eye (but not left), deviated angle of the mouth and flattening of the right nasolabial.
Major cerebral veins and venous sinuses subject to thrombotic occlusion. (Used with permission from Waxman S. Clinical Neuroanatomy. 26th ed. New York,
Number of uninsured persons in the United States, 1980 to 2014 (U. S
Functional organization of the cerebellum
Conjugated Eye Movements Ákos Lukáts MD. PhD.
Common causes of dementia based on age at presentation and rate of progression. “Mixed” refers to combined Alzheimer disease and vascular dementia. Totals.
The Visual System Neuro Quiz Identify the correct question
Neurology Resident and Fellow Section
The Eye.
Strap (parallel) Convergent Sphincter Unipennate Bipennate
Vision.
Localization of Lesions of the Oculomotor Nerve: Recent Concepts
Copyright © 2004 The McGraw-Hill Companies, Inc. All rights reserved.
Chapter 6 The Muscular System – Muscle Movements
Copyright © 2004 The McGraw-Hill Companies, Inc. All rights reserved.
Copyright © 2004 The McGraw-Hill Companies, Inc. All rights reserved.
Copyright © 2004 The McGraw-Hill Companies, Inc. All rights reserved.
Copyright © 2004 The McGraw-Hill Companies, Inc. All rights reserved.
By: Ben Maupin, Breanna Stauter, Sydney Evans
Copyright © 2004 The McGraw-Hill Companies, Inc. All rights reserved.
Copyright © 2004 The McGraw-Hill Companies, Inc. All rights reserved.
Copyright © 2013 Elsevier Inc. All rights reserved.
Copyright © 2004 The McGraw-Hill Companies, Inc. All rights reserved.
Presentation transcript:

Anatomy and function of extraocular muscles Anatomy and function of extraocular muscles. (A) Extraocular muscles in the left orbit (lateral view). (B) An illustration of the right eye viewed from above in the primary position (center figure) showing the angle of attachment of the superior and inferior rectus muscles and the superior and inferior oblique muscles. With the eye directed to the right, the superior and inferior rectus muscles can now be examined as pure elevators and depressors of the globe (right image), and with the eye deviated to the left, the oblique muscles can now be examined as pure elevators and depressors of the globe as illustrated in C. (C) The six cardinal positions of gaze for testing eye movement. The eye is adducted by the medial rectus and abducted by the lateral rectus. The adducted eye is elevated by the inferior oblique and depressed by the superior oblique; the abducted eye is elevated by the superior rectus and depressed by the inferior rectus. Source: Neuro-Ophthalmic Disorders, Clinical Neurology, 9e Citation: Aminoff MJ, Greenberg DA, Simon RP. Clinical Neurology, 9e; 2015 Available at: https://accessmedicine.mhmedical.com/DownloadImage.aspx?image=/data/books/1194/ami_ch7_f005b.png&sec=99976285&BookID=1194&ChapterSecID=68062858&imagename= Accessed: January 23, 2018 Copyright © 2018 McGraw-Hill Education. All rights reserved