12 results
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
nerve in the radial ... spared in this injury ... in the median nerve ... Myotomes #diagnosis #neurology ... sensory #motor #arm
Localizing Extraocular Movement Disorders
 • CN Ill (Oculomotor) Nerve Palsy 
 • CN IV (Trochlear) Nerve
palsyMedial ... One-and-a-half Syndrome ... Skew Deviation Casey ... #Localization #ophthalmology ... #neurology #differential
Radial Nerve Anatomy and Function
The Radial nerve is the nerve of elbow, wrist and digital extension.
Radial Nerve Anatomy ... nerve injury ... nerve injury ... • Thus a PIN palsy ... #diagnosis #neurology
Left Wrist Drop - Radial Nerve Palsy on Physical Examination

Left hand drop due to compression of
Left Wrist Drop - Radial ... Nerve Palsy on ... compression of the radial ... #Wrist #Drop #Radial ... #Nerve #Palsy #
Diplopia - Double Vision - Differential Diagnosis Algorithm
Clinical Pearls:
 • Diplopia is almost always binocular.
 •
• CN VI palsy ... ptosis with CN Ill palsy ... • Neurologic ... depress when looking medially ... #Ophthalmology
Monteggia Fracture 
Fracture of proximal ulnar shaft with radial head dislocation. Remember “MUGR” to recall where
ulnar shaft with radial ... and missing the radial ... ), compartment syndrome ... , ligamentous injury ... Posterior long arm
One and a Half Syndrome on Physical Exam

This 28 year old patient presented to clinic with
formation) and MLF (medial ... of this are tumors ... diagnosed with MS ... clinical #video #ophthalmology ... #neurology
Supracondylar Elbow Fracture
• Most common elbow fracture in children, peak age 5-7 
• When looking at
capitellum (age 1), radial ... brachial artery injury ... ), compartment syndrome ... Posterior long arm ... #Orthopedics #MSK
Hearing Loss - Differential Diagnosis Framework

Hearing Loss Types:
• Conductive
• Sensorineural
• Mixed
Presbycusis is the most common type
include a: • Neurologic ... tympanic membrane • Neurologic ... disruption ○ Otitis media ... II ○ Susac’s syndrome ... Noise trauma ○ MS
Myasthenia Gravis Overview

Myasthenia Gravis is an autoimmune disorder of the postsynaptic neuromuscular junction.  Ab to
proximal weakness, arms ... - Brain stem/Cranial ... nerve pathology ... - Repetitive nerve ... diagnosis #management #neurology