8 results
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Extension C6, C7, C8 (radial ... Extension - C7, C8 (radial ... Extension - C7, C8 (radial ... damage to the radial ... nerve in the radial
Localizing Extraocular Movement Disorders
 • CN Ill (Oculomotor) Nerve Palsy 
 • CN IV (Trochlear) Nerve
Localizing Extraocular Movement ... palsy • Medial ... One-and-a-half Syndrome ... Skew Deviation Casey ... #differential #diagnosis
Superior Oblique Myokymia 
Eye movement disorder where the superior oblique twitches periodically causing jumping of a
Eye movement ... It is probably caused ... the trochlear nerve ... Ophthalmology #Clinical ... #physicalexam #video
Hemimasticatory Spasm on Physical Exam

Hemimasticatory spasm is a disorder of the trigeminal nerve → involuntary jaw
the trigeminal nerve ... Myokimia will cause ... such gross movement ... #PhysicalExam #clinical ... #cheek #CN5 #video
Neuromyelitis Optica (NMO) - Clinical Manifestations
 • Optic neuritis: Reduced visual acuity, ranging from mild to
Optica (NMO) - Clinical ... /pain upon eye movement ... disturbances, facial ... pain • Extra-CNS ... Manifestations #diagnosis
One and a Half Syndrome on Physical Exam

This 28 year old patient presented to clinic with
the follow up video ... fasciculus), which causes ... (no horizontal movement ... The most common causes ... the hospital, diagnosed
Left Tongue Deviation caused by UMN XII palsy

Looks can be deceiving. The UMN innervation of most
Tongue Deviation caused ... this rule are CN ... the preserved movements ... #CNXII #palsy #clinical ... #video #hypoglossal
Sjogren's Syndrome Overview

Epidemiology:
• F > M: 9:1
• 5-6th Decades (can be any age)

Autoimmune exocrinopathy multisystemic disease
Diagnosis: • Dry ... Hypocomplementemia • Can cause ... salivary ducts Clinical ... disease, myelopathy, cranial ... nerve neuropathy