Chapter 7:5 Muscular System

Question 1

4 functions of the muscular system

Answer 1

Excitability- ability of muscles to respond to a stimulus

Contractibility- muscle fibers become short and thick

Extensibility- ability of muscles to be stretched

Elasticity-

Question 2

Fascia

Answer 2

Tough sheetlike membrane that covers and protects the tissue

Question 3

Origin

Answer 3

When muscle is attached to a bone, the end that doesn’t move

Question 4

Insertion

Answer 4

The end that moves when the muscle contract

Question 5

Fibromyalgia

Answer 5

Chronic, widespread pain in specific muscle sites

Question 6

Muscular Dystrophy

Answer 6

Group of inherited diseases that lead to chronic, progressive muscle atrophy.

Question 7

Myasthenia Gravis

Answer 7

Chronic condition where nerve impulses are not properly transmitted to the muscles

Question 8

Three main kinds of muscle

Answer 8

Cardiac, visceral, skeletal

Question 9

Visceral muscle

Answer 9

AKA smooth muscle, found in internal organs of the body such as digestive and respiratory system; contract to cause movement in organs

Question 10

Involuntary muscle

Answer 10

Function without conscious thought or control; cardiac and visceral muscles

Question 11

Skeletal muscle

Answer 11

Attached to bones and cause body movement

Question 12

Voluntary muscle

Answer 12

Person has control over its actions

Question 13

Tendons

Answer 13

Strong, tough, fibrous connective tissue cords.