8 results
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
Reflexes: • ... Commonly caused ... such as fibular fracture ... claudication and weakness ... #diagnosis #neurology
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Dermatomes and Myotomes ... , T1 (median) Reflexes ... anesthesia and deltoid weakness ... Extremity #Dermatomes #Myotomes ... #diagnosis #neurology
Reflex Testing - Causes of Hyporeflexia and Hyperreflexia
Focal Hyporeflexia: 
 • Radiculopathy, Mononeuropathy, Polyneuropathy, Acute stroke,
Reflex Testing - ... Causes of Hyporeflexia ... #differential # ... diagnosis #table ... #neurology
Lesions of the Spinal cord - Spinal Cord Syndromes

Spinal cord lesions can result in permanent neurologic
result in permanent neurologic ... in deep tendon reflexes ... Vertebral burst fracture ... syndromes #lesions #differential ... #diagnosis #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 ... distinguishing feature ... lower extremity weakness ... #diagnosis #causes ... #neurology
Spinal Cord Disorders - Differential Diagnosis Framework

Spinal cord neurological lesion:
Clinical findings:
 • Symptoms and signs below
Cord Disorders - Differential ... compression by fractured ... Non-compressive Spinal Cord Causes ... dysfunction • Abnormal reflexes ... disorders #diagnosis #neurology
Amyotrophic Lateral Sclerosis (ALS) Summary
ALS: combination of the clinical examination finding of amyotrophy with the pathologic
- Causes progressive ... weakness in the ... Increased Jaw Jerk reflex ... conditions listed in differential ... Lateral #Sclerosis #neurology
Transverse Myelitis Overview

Focal inflammatory disorder of the spinal cord resulting in rapid onset of weakness, sensory
Weakness: - Weakness ... Spasticity - Reflexes ... • Infectious causes ... diagnosis #management #neurology ... #differential