A muscle that runs down the arm, and inserts on the olecranon process of the ulna, would cause
A)extension of the elbow.
B)abduction of the arm.
C)extension of the fingers.
D)flexion of the elbow.
E)flexion of the fingers.

Question

Quizplus · Accepted Answer

The muscle that runs down the arm and inserts on the olecranon process of the ulna is most likely the triceps brachii. This muscle is primarily responsible for extension of the elbow joint, making choice A the correct answer. Abduction of the arm is performed by the deltoid muscle, extension of the fingers is performed by the extensor digitorum muscle, and flexion of the elbow and fingers is performed by various muscles including the biceps brachii and flexor digitorum superficialis.

A Muscle That Runs Down the Arm, and Inserts on the Olecranon