What is the deformity of 1st and 2nd lumbrical is called?
High-Yield Explanation
Paial claw hand Complete claw hand Involving only ulnar 2 digits as in isolated ulnar nerve palsy Involving all digits and resulting from combined ulnar and median nerve palsy Median Nerve: Sensory supply: lateral 3 and half fingers in the palmar aspect & tips of lateral 3 and half fingers in the dorsal aspect independent zone supplied by a single nerve (autonomous zone): tip of the index finger Motor supply: 1st and 2nd lumbricals anterior compament of the forearm except medial half of the flexor digitorum profundus and flexor carpi ulnaris thenar group of muscles except abductor pollicis brevis, flexor pollicis brevis, opponens pollicis Pointing Index: If the functioning of flexor pollicis longus, flexor digitorum profundus and flexor digitorum superficialis is lost, index finger can't flex upon making a fist. This results in the Pointing Index.