13 results
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Upper Extremity ... Dermatomes and Myotomes ... nerve in the radial ... #diagnosis #neurology ... sensory #motor #arm #physicalexam
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
Dermatomes and Myotomes ... Reflexes: • Knee ... • Cauda Equina Syndrome ... Medical Emergency ... damage to peroneal nerve
Spinal Cord Injury by Nerve Root Levels
Spinal Root	Sensory	Motor	Reflex
C4	Acromioclavicular Joint	Respiration	None
C5	Radial Antecubital Fossa	Elbow Flexion	Biceps Reflex
C6	Dorsal Thumb	Wrist Extension	Brachioradialis Reflex
C7	Dorsal
Cord Injury by Nerve ... None T7-T12 See Dermatomes ... Thigh Hip Flexion ... NerveRoots #Levels #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
 •
compression of nerve ... cord infarct • HIV ... region (S2-S4 dermatomes ... #differential # ... diagnosis #causes #neurology
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
Leg Pain - Differential ... Herpes zoster - HIV ... cyanosis - Cool extremity ... diagnosis #lower #extremity ... #msk #physicalexam
Orbital Apex Syndrome secondary to Herpes Zoster Ophthalmicus (HZO)

This 81 yo male was referred to our
Orbital Apex Syndrome ... Orbital Apex Syndrome ... HZO #clinical #video ... ophthalmology #physicalexam ... #neurology
Rare Causes of Abdominal Pain
 • Hereditary Angioneurotic Edema - Recurrent visceral that may by swelling
external factors • Median ... - Extremely lean ... patient is in the knee-to-chest ... Abdominal cutaneous nerve ... Abdominal #Pain #differential
Hearing Loss - Differential Diagnosis Framework

Hearing Loss Types:
• Conductive
• Sensorineural
• Mixed
Presbycusis is the most common type
Hearing Loss - Differential ... include a: • Neurologic ... disruption ○ Otitis media ... II ○ Susac’s syndrome ... zoster virus ○ HIV
Oppositional Grasp Weakness in Carpal Tunnel Syndrome

Dysfunction of the six- Opposition weakness-in carpal tunnel syndrome with
weakness of the median ... Grasp #Weakness #Hand ... #clinical #video ... #physicaleaxm # ... neurology #orthopedics
Orbicularis Reflex in an Alzheimer's Patient on Physical Exam

Alzheimer's is a degenerative, progressive and irreversible disease.
strike the upper lip ... in the median region ... The nerves involved ... #Pout #Reflex #PhysicalExam ... #neurology