6 results
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Upper Extremity ... Dermatomes and Myotomes ... - C6, C7, C8 Elbow ... #diagnosis #neurology ... sensory #motor #arm
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
Lower Extremity ... Dermatomes and Myotomes ... Commonly caused ... stopping walking (vascular ... #diagnosis #neurology
Acute Spinal Cord Injuries: Pathogenesis and clinical findings
 • Anterior Cord Syndrome -> Anterior spinal artery
injury, often from vascular ... in hands) • Posterior ... Mixed upper and lower ... signs #symptoms #msk ... #orthopedics #neurology
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
- Emergency Causes ... Syringomyelia • Spinal AVM ... perineum, and posterior ... differential #diagnosis #causes ... #neurology
Spinal Cord Disorders - Differential Diagnosis Framework

Spinal cord neurological lesion:
Clinical findings:
 • Symptoms and signs below
Non-compressive Spinal Cord Causes ... Vascular/Blockage ... Blood Supply: - AVM ... , lower extremity ... disorders #diagnosis #neurology
Amyotrophic Lateral Sclerosis (ALS) Summary
ALS: combination of the clinical examination finding of amyotrophy with the pathologic
Microglial cells are ... - Causes progressive ... 4) progressive muscular ... , lower extremity ... Lateral #Sclerosis #neurology