20 results
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
damage to the radial ... nerve in the radial ... Dermatomes #Myotomes #diagnosis ... #neurology #sensory ... #motor #arm #physicalexam
CN III Palsy - Oculomotor Nerve
 • Ptosis: Loss of innervation of the levator palpebrae superior.
CN III Palsy - Oculomotor ... Nerve • Ptosis ... inferior rectus, medial ... #Cranial #neurology ... #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 #
Localizing Extraocular Movement Disorders
 • CN Ill (Oculomotor) Nerve Palsy 
 • CN IV (Trochlear) Nerve
palsyMedial ... Skew Deviation Casey ... #Localization #ophthalmology ... #neurology #differential ... #diagnosis #ocular
Unilateral Fixed Dilated Pupil - Differential Diagnosis Framework
If Altered Mental Status - Consider Oculomotor (3rd cranial
Framework If Altered Mental ... Oculomotor (3rd cranial ... nerve) Palsy: ... no neurological cause ... #neurology
Diplopia - Double Vision - Differential Diagnosis Algorithm
Clinical Pearls:
 • Diplopia is almost always binocular.
 •
• CN VI palsy ... • Neurologic ... large/unreactive pupil ... depress when looking medially ... #Ophthalmology
Convergence Retraction Nystagmus with a left 6th nerve palsy

Caused by a Midbrain hemorrhage

Dr. Boby Varkey Maramattom
with a left 6th nerve ... palsy Caused ... nystagmus #ocular #physicalexam ... #clinical #video ... #neurology #ophthalmology
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 #
Adie's Pupil
What? Unknown nature & benign
 • Regular and mildly dilated pupil (4-6mm);
 • Light-near dissociaton;
females Differential Diagnosis ... : • CN Ill Palsy ... dissociation • Other causes ... #PhysicalExam # ... neurology #ophthalmology
Wrist Drop on Physical Exam - Caused by Radial Nerve Injury

#Wrist #Drop #PhysicalExam #Radial #Nerve #Injury
Physical Exam - Caused ... by Radial Nerve ... #Radial #Nerve ... Injury #clinical #video ... #neurology