Exam 10: The Muscular System

When the term biceps,triceps,or quadriceps forms part of a muscle's name,what does it tell you about the muscle?

Regardless of type,all levers follow the same basic principle: effort farther than load from fulcrum = mechanical advantage; effort nearer than load to fulcrum = mechanical disadvantage.

Figure 10.2 Using Figure 10.2, match the following: -Sternocleidomastoid.

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?

Which of the following muscles is a flexor of the thigh?

If a lever operates at a mechanical disadvantage,it means that the ________.

Bodybuilders are known for their "great quads." Describe the quadriceps muscles.

The ________ tightens the neck and draws the corners of the mouth downward as in expressing horror.

The quadriceps femoris is composed of three "vastus" muscles and the ________.

The ________ runs deep to the internal oblique.

The calcaneal tendon (Achilles tendon)is the largest tendon in the body.

The supraspinatus is named for its location on the posterior aspect of the scapula above the spine.What is its action?

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.

Which of the following is NOT a muscle primarily involved in the breathing process?

Muscle spasms of the back often are due to the erector spinae contraction.

Figure 10.1 Using Figure 10.1, match the following: -First-class lever.

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

Which of the following best describes the orbicularis oris?

What is the major factor controlling how levers work?

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