A 43-year-old man had a previous injury to his wrist. The ulnar nerve was severed, as indicated by which of the following?
The lumbrical muscles arise from the flexor digitorum profundus tendons at a level distal to the small bones in the hand. The hypothenar muscles are on the ulnar side, and the thenar muscles are on the thumb side of the hand. The medial two lumbrical muscles are paralyzed, and this leads to the typical deformity.
Claw hand involving the ring and little fingers
Claw hand involving the index and middle fingers
Atrophy of the thenar muscles
Absent sensation in the index finger
Orthopedics