10. Muscles

What is the primary action of the trapezius muscle?

Which of the following is the insertion for the brachialis muscle?

In muscle actions, what term describes the muscle that provides the major force (primary mover) for a specific movement?

To allow for flexion, which muscle unlocks the knee joint?

What structures attach muscles to bones?

Which of the following best describes pronation?

Which muscle group is primarily responsible for extending the knee joint?

Which muscle is the primary extensor of the elbow joint?

Which of the following actions is performed by the external oblique muscle?

Which muscle is primarily responsible for flexing the elbow?

Which action is primarily performed by the biceps brachii muscle?

What is the primary action of the gastrocnemius muscle at the ankle joint?

Which of the following is an action of the gastrocnemius muscle?

What is the primary action of the brachioradialis muscle at the elbow joint?

Which action is primarily produced by contraction of the erector spinae muscle group?