26 results
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
nerve in the radial ... regimental badge" anesthesia ... Dermatomes #Myotomes #diagnosis ... sensory #motor #arm ... #physicalexam
Marcus Gunn Phenomenon - Jaw Winking Syndrome

Jaw-winking syndrome is thought to be caused by abnormal innervation
thought to be caused ... the trigeminal nerve ... Most cases are congenital ... #clinical #video ... #neurology #physicalexam
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
- Differential Diagnosis ... Spinal stenosis/nerve ... Paralysis 4) Paresthesia ... #differential #diagnosis ... extremity #msk #physicalexam
Monteggia Fracture 
Fracture of proximal ulnar shaft with radial head dislocation. Remember “MUGR” to recall where
ulnar shaft with radial ... posterior interosseous nerve ... ), compartment syndrome ... Posterior long arm ... Radiology #XRay #Diagnosis
Guillain-Barre Syndrome - Summary

Acute AIDP that presents with rapidly progressive flaccid weakness

Epidemiology:
 • 1-2 cases/100,000 per
Epidemiology: • 1-2 cases ... Can begin in arms ... Absent Reflexes: Arms ... Guillain-Barre Diagnosis ... #diagnosis #management
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
compression of nerve ... • S - Saddle anesthesia ... - Emergency Causes ... Differential Diagnosis ... #causes #neurology
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
• Cauda Equina Syndrome ... saddle (perineal) anesthesia ... Commonly caused ... damage to peroneal nerve ... Dermatomes #Myotomes #diagnosis
Horner's Syndrome on Physical Exam

A 75yoF was referred in for facial swelling and eyelid changes 1
referred in for facial ... consistent with a diagnosis ... experience, the cause ... #clinical #video ... ophthalmology #physicalexam
Marcus Gunn Phenomenon - Jaw Winking Syndrome

Jaw-winking ptosis is thought to be caused by abnormal innervation
- Jaw Winking Syndrome ... the trigeminal nerve ... Most cases are congenital ... #clinical #video ... #neurology #physicalexam
Marcus Gunn Phenomenon - Jaw Winking Syndrome

Jaw-winking ptosis is thought to be caused by abnormal innervation
- Jaw Winking Syndrome ... the trigeminal nerve ... Most cases are congenital ... #clinical #video ... #neurology #physicalexam