17 results
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
- C7, C8 (radial ... - C7, C8 (radial ... Syndrome Wrist drop ... Dermatomes #Myotomes #diagnosis ... #neurology #sensory
Left Wrist Drop - Radial Nerve Palsy on Physical Examination

Left hand drop due to compression of
- Radial Nerve Palsy ... compression of the radial ... affected limb, also ... #Radial #Nerve ... #msk #sports #neurology
Synkinetic Wrist Extension Maneuver demonstrating Radial Nerve Palsy as cause for Wrist Drop

Up up, down down.
demonstrating Radial ... Nerve Palsy as ... cause for Wrist ... and pronation- Radial ... #Maneuver #Radial
Radial Nerve Anatomy and Function
The Radial nerve is the nerve of elbow, wrist and digital extension.
wrist and digital extension ... involve a wrist drop ... • As a degenerative ... Nerve #Anatomy #diagnosis ... #neurology #orthopedics
Localizing Extraocular Movement Disorders
 • CN Ill (Oculomotor) Nerve Palsy 
 • CN IV (Trochlear) Nerve
Medial Longitudinal ... Skew Deviation Casey ... #Localization #ophthalmology ... #neurology #differential ... #diagnosis #ocular
Median Nerve Anatomy and Function
The Median nerve is the nerve of pre-axial hand function; pinch, delicate
sensory in the medial ... interosseous nerve (AIN) palsy ... to medial ... Nerve #Anatomy #diagnosis ... #neurology #orthopedics
Medial Meniscus Bucket Handle Tear - MSK Radiology
Imaging Findings:
 • Truncation of the medial meniscus on
Medial Meniscus ... Truncation of the medial ... displaced fragment is also ... posterior horn lateral ... DrvonBorstel #Medial
Diplopia - Double Vision - Differential Diagnosis Algorithm
Clinical Pearls:
 • Diplopia is almost always binocular.
 •
Neurologic ... suggest a mass as ... the cause ... depress when looking medially ... #Ophthalmology
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
Medical Emergency ... Neuropathy - Foot drop ... Commonly caused ... Dermatomes #Myotomes #diagnosis ... #neurology #sensory
Mastoiditis: Pathogenesis and clinical findings

Acute or Chronic Otitis Media -> 
Stage 1: Hyperemeia of the mastoid
cavities Stage 5: Extension ... membrane • Through lateral ... Inferior through medial ... nerve palsy • ... signs #symptoms #diagnosis