17 results
Mytomes - Segmental Innervation of Muscles
Shoulder	Abduction	C5	Axillary Nerve
Shoulder	Adduction	C6-C8	Thoracodorsal Nerve
Elbow	Flexion	C5	Musculocutaneous Nerve
Elbow	Extension	C7	Radial Nerve
Wrist	Extension	C6	Radial Nerve
Fingers	Flexion	C8	Median Nerve
Fingers	Abduction	T1	Ulnar Nerve
Hip	Flexion	L2	Nerve to Psoas
Hip	Extension	S1	Inferior Gluteal
Elbow Extension ... C7 Radial Nerve ... Wrist Extension ... C6 Radial Nerve ... Knee Extension
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
extension • ... fracture, median nerve ... #Carpal #Radiology ... #Orthopedics #Sports ... #MSK
Radial Nerve Anatomy and Function
The Radial nerve is the nerve of elbow, wrist and digital extension.
Radial Nerve Anatomy ... and digital extension ... When clinically ... extension) but ... #diagnosis #neurology
Median Nerve Tension Test (Upper-Limb Neurodynamic Tests, ULNT2)

To assess for Median Nerve Peripheral Neuropathy

Elbow extension →
Median Nerve Tension ... Neuropathy Elbow extension ... dorsiflexion/finger extension ... #msk #orthopedics ... #neurology #ULNT
Left Wrist Drop - Radial Nerve Palsy on Physical Examination

Left hand drop due to compression of
Left Wrist Drop ... - Radial Nerve Palsy ... #clinical #video ... #orthopedics #msk ... #sports #neurology
Median Nerve Tension Test (Upper-Limb Neurodynamic Tests, ULNT1)

To assess for Median Nerve Peripheral Neuropathy

Shoulder abduction →
Median Nerve Tension ... dorsiflexion/finger extension ... rotation → elbow extension ... #msk #orthopedics ... #neurology #ULNT
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
musculocutaneous) • Extension ... C7 (median) • Extension ... C8 (median) • Extension ... nerve in the radial ... Carpal Tunnel Syndrome
Synkinetic Wrist Extension Maneuver demonstrating Radial Nerve Palsy as cause for Wrist Drop

Up up, down down.
Extension Maneuver ... extension can be ... the fist leads extension ... #Extension #Maneuver ... #Radial #Nerve
Inverted Supinator Test

Useful for identifying a lesion at the C5-C6 spinal cord level.  Tapping the
extension and wrist ... #Test #Reflex #neurology ... #clinical #video ... #orthopedics #msk ... #sports #IRR #Radial
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
ulna, pain with wrist ... flexion and extension ... dislocation, distal radius ... #Orthopedics #Sports ... #MSK