Exam 10: The Muscular System

What muscle is primarily responsible for preventing foot drop?

The__________ runs deep to the internal oblique.

Paralysis of which of the following muscles would make an individual unable to flex the knee?

The__________ is a synergist of the latissimus dorsi; it extends, medially rotates, and adducts the humerus.

Which of the following muscles is involved in inversion at the ankle joint?

What do the genioglossus, hyoglossus, and styloglossus muscles have in common?

The nurse is explaining Kegel exercises to strengthen the pelvic floor muscles. What factors may contribute to a weakening of the pelvic floor muscles?

The sternocleidomastoid muscle inserts on the __________ .

A college student told her friend that she was going to the gym to work on tightening her gluteus maximus. Which muscle is she referring to and what is its function?

Which of the following describes the suprahyoid muscles?

Which of the following muscles is used to form a smile?

What are the levers that operate at a mechanical advantage called?

Muscles that act as synergists seem to have valuable functions, especially in stabilizing joints. Briefly explain their functions.

In order to propel food down to the esophagus, the pharyngeal constrictor muscles are used.

David is playing football when he suffers from a ruptured calcaneal tendon. The rupture is accompanied by abrupt pain and the calf muscle bulges due to the release of two muscles from their insertion. Name these two muscles.

What is a muscle that provides the major force for producing a specific movement called?

Muscle power depends mostly on the total number of muscle fibers (cells) in the muscle.

From superficial to deep, order the transversus abdominis, external oblique and internal oblique muscles. Describe the orientation of the muscle fibers for each of these as well as for the rectus abdominis muscles.

Brian decided to enter a 5-mile race designed to raise money for a class trip. He did not do any preconditioning, nor has he ever jogged before. The morning after the race, Brian had so much pain in both his shins, he was unable to go to school. What caused this pain?

At the grocery store a cute, little curly-haired child is standing behind you in line. You turn around for a moment and she sticks her tongue out at you. Which tongue muscle did she use?