Muscular System

Muscular System Chapter Test Review

True/False

Indicate whether the sentence or statement is true or false.

____ 1. Muscles are bundles of muscle fibers held together by connective tissue.

____ 2. When muscles contract, they become longer and thinner.

____ 3. If a muscle functions without conscious thought or control, it is called voluntary.

____ 4. When a muscle attaches to a bone, the end that does not move is called the origin.

____ 5. Muscles are partially contracted at all times, even when not in use.

____ 6. Muscles atrophy when they are exercised to the point of pain.

____ 7. Foot drop is a common contracture.

____ 8. The intercostal muscles are important for breathing.

____ 9. Muscular dystrophy is a chronic condition where nerve impulses are not properly transmitted to the muscles.

____ 10. Muscle spasms are sudden, painful, involuntary muscle contractions.

____ 11. Myalgia is an overstretching of or injury to a muscle.

____ 12. Extension occurs when the fingers are bent to form a fist.

____ 13. Fibromyalgia is chronic, widespread pain in specific muscle sites.

____ 14. Myasthenia gravis is a group of inherited diseases that lead to chronic, progressive muscle atrophy.

Multiple Choice

Identify the letter of the choice that best completes the statement or answers the question.

____ 15. Which of the following kinds of muscle is voluntary?

|a. |cardiac |c. |visceral |

|b. |skeletal |d. |smooth |

____ 16. A tough, sheetlike membrane that covers and protects the tissue is a____.

|a. |ligament |c. |fascia |

|b. |tendon |d. |viscera...