Muscular System

Question 1

What is the function of the Muscular System?

Answer 1

Muscles contract and relax to create the movement of the body.

Question 2

Cardiac

Answer 2

heart muscle (involuntary)

Question 3

Skeletal

Answer 3

muscles that move bones (voluntary)

Question 4

Smooth

Answer 4

muscles that control digestion and breathing (involuntary)

Question 5

What do stressful muscular activities cause the body to grow?

Answer 5

Additional muscle cells

This growth helps perform the stressful muscular activity.

Question 6

What do skeletal muscles do?

Answer 6

Pull on bones to move the body

Skeletal muscles are responsible for voluntary movements.

Question 7

Where are smooth muscles located?

Answer 7

Esophagus, stomach, small intestine, large intestine, rectum, and anus

Smooth muscles move automatically and are involuntary.

Question 8

What is unique about cardiac muscle?

Answer 8

It never needs to rest

The day it stops beating is the day you die.

Question 9

What happens if you don’t use your muscle?

Answer 9

You lose your muscles (muscular atrophy)

Regular use of muscles is essential to maintain strength and size.

Question 10

What occurs during shivering?

Answer 10

Muscles move rapidly to warm you up

Shivering is an involuntary response to cold.

Question 11

What is the only action muscles can perform?

Answer 11

Contract (pull) and relax

This requires two oppositely positioned muscles attached to a bone to move it in two opposite directions.