11 results
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Upper Extremity ... Abduction - C8-T1 (ulnar ... Adduction - C7-T1 (ulnar ... , T1 (median) Reflexes ... Myotomes #diagnosis #neurology
Hoffman's sign. Even in this specific case, accompanied by a clonus outline (rhythmic contractions). The median
this specific case ... acts both as an afferent ... and efferent pathway ... Hoffmanns #Sign #Reflex ... clinical #video #neurology
Reflex Testing - Causes of Hyporeflexia and Hyperreflexia
Focal Hyporeflexia: 
 • Radiculopathy, Mononeuropathy, Polyneuropathy, Acute stroke,
Reflex Testing - ... Causes of Hyporeflexia ... and Hyperreflexia ... Guillain-Barré syndrome ... diagnosis #table #neurology
Guillain-Barre Syndrome - Summary

Acute AIDP that presents with rapidly progressive flaccid weakness

Epidemiology:
 • 1-2 cases/100,000 per
Epidemiology: • 1-2 cases ... paralysis of all extremity ... Decreased / Absent Reflexes ... Paresthesias: Hands ... management #treatment #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 ... cord • Guillain-Barre ... reflexes - reduced ... differential #diagnosis #causes ... #neurology
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
Lower Extremity ... Reflexes: • ... Commonly caused ... #LowerLimb #Extremity ... Myotomes #diagnosis #neurology
Guillain-Barré Syndrome (GBS)
Acute autoimmune demyelinating polyradiculoneuropathy that presents with rapidly progressive flaccid weakness
Epidemiology:
 • Incidence: 1
Guillain-Barré Syndrome ... Incidence: 1 to 2 cases ... depressed deep tendon reflexes ... paralysis of all extremity ... diagnosis #management #neurology
Wartenberg Thumb Reflex

Forceful flexion of the fingers at the distal IP joints produces (Adduction, flexion, and
Wartenberg Thumb Reflex ... called the upper extremity ... Wartenberg sign in ulnar ... Wartenberg #Thumb #Reflex ... #neurology #physicalexam
Causes of Secondary Hypertension - Workup and Differential Diagnosis
Approach (when evaluation should be done):
1. Severe or
Causes of Secondary ... antihypertensive agents from different ... heart failure, neurologic ... Neurologic disorders ... Guillain-Barre
Spinal Cord Disorders - Differential Diagnosis Framework

Spinal cord neurological lesion:
Clinical findings:
 • Symptoms and signs below
Non-compressive Spinal Cord Causes ... dysfunction • Abnormal reflexes ... Symptoms: • Upper extremity ... , lower extremity ... disorders #diagnosis #neurology