14 results
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Extension - C7, C8 (radial ... damage to the radial ... nerve in the radial ... Dermatomes #Myotomes #diagnosis ... #neurology #sensory
Localizing Extraocular Movement Disorders
 • CN Ill (Oculomotor) Nerve Palsy 
 • CN IV (Trochlear) Nerve
Medial Longitudinal ... Skew Deviation Casey ... #Localization #ophthalmology ... #neurology #differential ... #diagnosis #ocular
Left Wrist Drop - Radial Nerve Palsy on Physical Examination

Left hand drop due to compression of
- Radial Nerve Palsy ... compression of the radial ... sleeping as in this case ... #Drop #Radial # ... #msk #sports #neurology
Radial Nerve Anatomy and Function
The Radial nerve is the nerve of elbow, wrist and digital extension.
Radial Nerve Anatomy ... • Thus a PIN palsy ... nerve (or PIN) palsy ... Nerve #Anatomy #diagnosis ... #neurology #orthopedics
Causes of Facial Weakness - Differential Diagnosis Algorithm
Forehead Sparing = Central cause
  - Most commonly
Causes of Facial ... - Differential Diagnosis ... Algorithm Forehead ... #Algorithm #Causes ... #neurology #sparing
Synkinetic Wrist Extension Maneuver demonstrating Radial Nerve Palsy as cause for Wrist Drop

Up up, down down.
demonstrating Radial ... cause for Wrist ... and pronation- Radial ... Extension #Maneuver #Radial ... #physicalexam #neurology
Diplopia - Double Vision - Differential Diagnosis Algorithm
Clinical Pearls:
 • Diplopia is almost always binocular.
 •
• CN VI palsy ... • Neurologic ... depress when looking medially ... #Algorithm #Causes ... #Ophthalmology
Causes of Bradykinetic Movement Disorders - Differential Diagnosis Algorithm
Parkinson's Disease (TRAP):
• Resting Tremor
• Cogwheel Rigidity
• Akinesia/Bradykinesia
•
Causes of Bradykinetic ... - Differential Diagnosis ... • Axial rigidity ... MovementDisorders #Neurology ... #Algorithm #Causes
Causes of Peripheral Weakness with Sensory Changes - Differential Diagnosis Algorithm
Radiculopathy:
 • Disc
 • Spondylosis
 •
Causes of Peripheral ... - Differential Diagnosis ... • Peroneal • Radial ... Weakness #Sensory #Neurology ... #Algorithm #Causes
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