Which of the following best describes the insertion of the extensor digitorum?
A) It indirectly inserts on all digits of the hand.
B) It indirectly inserts on all digits of the hand except the thumb.
C) It directly inserts on all digits of the hand.
D) It directly inserts on all digits of the hand except the thumb.
E) It directly inserts on the index finger only.

Question

Quizplus · Accepted Answer

The extensor digitorum muscle indirectly inserts on all digits of the hand except the thumb, extending the phalanges of the fingers. The thumb has its own extensors, namely the extensor pollicis longus and brevis.

Which of the Following Best Describes the Insertion of the Extensor