7 results
Hand Nerve Injuries - Common Presentations
 • Wrist Drop - Radial Nerve Injury
 • Claw Hand
Presentations • Wrist ... Drop - Radial Nerve ... Hand - Ulnar Nerve ... Injuries #Anatomy #Differential ... #Diagnosis #MSK
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
and Myotomes Motor ... drop - Occurs after ... spared in this injury ... Carpal Tunnel Syndrome ... #arm #physicalexam
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
Lower Extremity Dermatomes ... Neuropathy - Foot drop ... damage to peroneal nerve ... neurology #sensory #motor ... #leg #physicalexam
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
Leg Pain - Differential ... • Sciatica • Tarsal ... #pain #differential ... lower #extremity #msk ... #physicalexam
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
by Nerve Root Levels ... Spinal Root Sensory Motor ... C6 Dorsal Thumb Wrist ... Flexion None T1 Ulnar ... None T7-T12 See Dermatomes
Meralgia paresthetica: Pathogenesis and Clinical Findings
Compression/injury of Lateral Femoral Cutaneous Nerve (LFCN) -> Meralgia paresthetica
 •
Findings Compression/injury ... rarely follow dermatomal ... radicular symptoms, motor ... Negative Straight Leg ... MeralgiaParesthetica #MSK
The Neurological Evaluation of a Comatose Patient

Definition:
 • Coma: a state of unresponsiveness; the absence of
consciousness Differential ... Awareness • Injury ... threat Cranial Nerves ... clenched; legs ... caseyalbin #PhysicalExam