6 results
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Upper Extremity Dermatomes ... Pronation - C7, C8 Wrist ... nerve in the radial ... Carpal Tunnel Syndrome ... #Myotomes #diagnosis
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
fracture, median nerve ... injury • ED Management ... #Carpal #Radiology ... #XRay #Diagnosis ... #Sports #MSK
Distal Radius Fracture 
Distal radius fracture is the most common orthopedic injury. Here's a quick summary.
•
variable gross wrist ... fracture, median nerve ... injury, acute carpal ... tunnel syndrome ... #MSK
Hearing Loss - Differential Diagnosis Framework

Hearing Loss Types:
• Conductive
• Sensorineural
• Mixed
Presbycusis is the most common type
Diagnosis Framework ... • Outer Ear: ... II ○ Susac’s syndrome ... Noise trauma ○ MS ... #Differential #Diagnosis
Paget’s Disease: Complications
Abnormal Osteoclasts cause excessive bone turnover -> Incr bone resorption, Incr (abnormal) bone formation

MSK
bone formation MSK ... to high cardiac output ... the cranial nerve ... Conductive hearing loss ... pathophysiology #diagnosis
Myasthenia Gravis Overview

Myasthenia Gravis is an autoimmune disorder of the postsynaptic neuromuscular junction.  Ab to
fatiguable chewing, loss ... nerve pathology ... myasthenia Diagnosis ... - Repetitive nerve ... #management #neurology