17 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
Superior Oblique Myokymia 
Eye movement disorder where the superior oblique twitches periodically causing jumping of a
movement disorder ... It is probably caused ... the trochlear nerve ... #Clinical #physicalexam ... #video #trochlear
Localizing Extraocular Movement Disorders
 • CN Ill (Oculomotor) Nerve Palsy 
 • CN IV (Trochlear) Nerve
PalsyCN IV ... palsyCN VI ... palsyMedial ... Skew Deviation Casey ... #differential #diagnosis
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 #
Radial Nerve Anatomy and Function
The Radial nerve is the nerve of elbow, wrist and digital extension.
Radial Nerve Anatomy ... It arises from C5 ... When clinically ... • Thus a PIN palsy ... #diagnosis #neurology
Superior oblique myokymia 

Superior oblique myokymia causes a repetitive, high frequency intorsion of the eye, leading
myokymia Superior ... causes a repetitive ... oscillopsia (illusion of movement ... Satisfying to diagnose ... #physicalexam #video
Synkinetic Wrist Extension Maneuver demonstrating Radial Nerve Palsy as cause for Wrist Drop

Up up, down down.
demonstrating Radial ... Nerve Palsy as ... nerve palsy with ... nerve palsy. ... #Nerve #Palsy #
Superior oblique myokymia 

Superior oblique myokymia causes a repetitive, high frequency intorsion of the eye, leading
myokymia Superior ... causes a repetitive ... Satisfying to diagnose ... Resolution .mp4 video ... ophthalmology-physicalexam-clinical-myokymia-slitlamp-superior-oblique
Diplopia - Double Vision - Differential Diagnosis Algorithm
Clinical Pearls:
 • Diplopia is almost always binocular.
 •
- Differential Diagnosis ... Algorithm Clinical ... • CN VI palsy ... Ill palsy ... a mass as the cause
Left Tongue Deviation caused by UMN XII palsy

Looks can be deceiving. The UMN innervation of most
Tongue Deviation caused ... nerve receives ... this rule are CN ... the preserved movements ... #clinical #video