A 34-year-old woman develops forearm pain and hand weakness after a supracondylar fracture is placed in a cast. When asked to make an OK sign, she presses the pads of the thumb and index finger together instead of forming a circle. Sensation in the hand is normal. Injury to which of the following nerves best explains these findings?
- A)Median nerve
- B)Musculocutaneous nerve
- C)Anterior interosseous nerveGABARITO
- D)Ulnar nerve
- E)Radial nerve
Explicação
The anterior interosseous nerve is a pure motor branch of the median nerve that innervates flexor pollicis longus and the lateral flexor digitorum profundus. Loss of these muscles produces the classic pinching defect with preserved sensation because this branc... Ver explicação completa e trilha adaptativa →