A 42-year-old male with a lesion of the ulnar nerve is unable to flex the II and V fingers to the midline. Which muscle function is impaired in this case?

Answer options

1. Palmar interosseous muscles
2. Fidicinales
3. Abductor muscle of little finger
4. Dorsal interosseous muscle
5. Short palmar muscle

Explanation

A 42-year-old male with a lesion of the ulnar nerve is unable to flex the II and V fingers to the midline. Which muscle function is impaired in this case?All interosseous muscles are innervated by the ulnar. The dorsal interosseous muscles control adduction while palmar interosseous control abduction.