Innervation and neuropathies

Question 1

Sensory innervation - median nerve

Answer 1

Thumb to middle of ring finger on palm
tips of middle three fingers + lateral half of the ring finger

Question 2

Sensory innervation - ulnar nerve

Answer 2

Middle of ring finger and pinky finger
both sides

Question 3

Sensory innvervation - radial nerve

Answer 3

Dorsum of hand up until the tips of the three middle fingers, from thumb to middle of ring finger

Question 4

How do you distinguish between hand motor innervation.

Answer 4

Thumb = generally median nerve, whilst everything else is ulnar nerve.

However, thumb ADDUCTION and hypothenar eminence is ULNAR nerve.