10. Muscles

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?

Which type of muscle acts to stabilize the origin of a prime mover and help maintain upright posture?

Which of the following muscles does not flex the forearm?

Which facial muscle is primarily responsible for raising the eyebrows?

Which of the following correctly lists the steps of muscle relaxation in the proper sequence?

What type of stretching involves contracting a muscle prior to stretching it?

Which action is most characteristic of the brachioradialis muscle at the elbow joint?