11 results
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Upper Extremity ... , T1 (median) Reflexes ... characteristic "waiter's tip ... #UpperLimb #Extremity ... Myotomes #diagnosis #neurology
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
Lower Extremity ... and Myotomes Reflexes ... Commonly caused ... damage to peroneal nerve ... dysaesthesia, neurogenic
Orbicularis Reflex in an Alzheimer's Patient on Physical Exam

Alzheimer's is a degenerative, progressive and irreversible disease.
time, and can cause ... present in the video ... strike the upper lip ... The nerves involved ... #neurology
Hoffman's sign. Even in this specific case, accompanied by a clonus outline (rhythmic contractions). The median
this specific case ... The median nerve ... middle finger. 2) Ask ... Abnormal #clinical #video ... #neurology #PhysicalExam
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 ... - Emergency Causes ... cord infarct • HIV ... differential #diagnosis #causes ... #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 ... Campylobacter jejuni - HIV ... paralysis of all extremity ... Decreased / Absent Reflexes ... /constipation, hyponatremia
Guillain-Barré Syndrome (GBS)
Acute autoimmune demyelinating polyradiculoneuropathy that presents with rapidly progressive flaccid weakness
Epidemiology:
 • Incidence: 1
Incidence: 1 to 2 cases ... immunodeficiency virus (HIV ... depressed deep tendon reflexes ... paralysis of all extremity ... diagnosis #management #neurology
Hoover's Sign for Functional Lower Extremity Paralysis

Used to distinguish organic from functional leg hemiparesis.

Ask the patient
Functional Lower Extremity ... Ask the patient ... to flex their weak ... leg at the hip. ... hemiparesis #clinical #video
Transverse Myelitis Overview

Focal inflammatory disorder of the spinal cord resulting in rapid onset of weakness, sensory
Spasticity - Reflexes ... brain and/or optic nerve ... simplex virus, HIV ... , Hep A/B/CMV, TB ... diagnosis #management #neurology
Ely's Test for Rectus Femoris Tightness

Patient lies prone on the table. The examiner flexes the leg
are unable to flex ... raises off of the ... tightness, femoral nerve ... Femoris #clinical #video ... #msk #orthopedics