18 results
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
and Myotomes Motor ... Wrist drop - Occurs ... nerve in the radial ... Dermatomes #Myotomes #diagnosis ... #neurology #sensory
Left Wrist Drop - Radial Nerve Palsy on Physical Examination

Left hand drop due to compression of
Left Wrist Drop ... - Radial Nerve Palsy ... #Radial #Nerve ... #clinical #video ... #msk #sports #neurology
Localizing Extraocular Movement Disorders
 • CN Ill (Oculomotor) Nerve Palsy 
 • CN IV (Trochlear) Nerve
Palsy • CN IV ... palsyMedial ... One-and-a-half Syndrome ... ophthalmology #neurology ... #differential #diagnosis
Median Nerve Anatomy and Function
The Median nerve is the nerve of pre-axial hand function; pinch, delicate
Median Nerve Anatomy ... The median nerve ... and intrinsic motor ... (AIN) palsy leaves ... #diagnosis #neurology
Radial Nerve Anatomy and Function
The Radial nerve is the nerve of elbow, wrist and digital extension.
The first motor ... When clinically ... • Thus a PIN palsy ... involve a wrist drop ... #diagnosis #neurology
CN III Palsy - Oculomotor Nerve
 • Ptosis: Loss of innervation of the levator palpebrae superior.
Nerve • Ptosis ... comparison to Horner's syndrome ... inferior rectus, medial ... #Cranial #neurology ... #diagnosis
Synkinetic Wrist Extension Maneuver demonstrating Radial Nerve Palsy as cause for Wrist Drop

Up up, down down.
Nerve Palsy as ... nerve palsy with ... nerve palsy. ... #Nerve #Palsy # ... Drop #clinical #
“Wrist drop” deformity due to radial nerve palsy – the patient cannot extend their wrist or
“Wrist drop” deformity ... due to radial nerve ... palsy – the patient ... wrist or fingers #Clinical ... #Photo #WristDrop
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
• Cauda Equina Syndrome ... Medical Emergency ... Neuropathy - Foot drop ... damage to peroneal nerve ... #neurology #sensory
Causes of Neuromuscular Weakness
 • Spinal Cord: Demyelinating Disease (MS), Epidural abscess, Infarction, Syringomyelia, Tetanus, Transverse
Trauma, Tumor • Motor ... Nerves: ALS, Cervical ... heavy metals), Critical ... #differential #diagnosis ... #neurology