Which of the following muscles is the only muscle capable of extending the metacarpophalangeal (MCP)joint of the digits?
A) Interossei
B) Lumbricales
C) Extensor digitorum
D) Extensor carpi ulnaris

Question

Quizplus · Accepted Answer

The extensor digitorum muscle is the only muscle capable of extending the metacarpophalangeal (MCP) joint of the digits. The interossei and lumbricales muscles are involved in movement of the interphalangeal joints, while the extensor carpi ulnaris is responsible for extension of the wrist joint.

Which of the Following Muscles Is the Only Muscle Capable