Question: The gastrocnemius muscle of the calf causes plantar flexion when it contracts. The joint works as a second-class lever. This is useful because second-class levers

Answer: exert more force than other types of levers

Question: The biceps brachii acts as a third-class lever, pulling on the radius to move the hand a long distance compared to how far the muscle shortens. To get the most distance for its force, which type of fascicle organization would the biceps brachii have?

Answer: parallel

Question: The quadriceps muscle group, the knee extensors, consists primarily of pennate muscles. What advantage does this arrangement provide?

Answer: increased force

Question: The buccinator muscle is innervated by the

Answer: facial nerve

Question: At its insertion (unlike at its origin), the buccinator muscle

Answer: attaches to fibers of another facial muscle