Chapter 47 Musculoskeletal Systems

Question 1

3 types of vertebrate muscle

Answer 1

Skeletal
Cardiac
Smooth

Question 2

Skeletal muscle is responsible for

Answer 2

All voluntary movements

Also involved in many involuntary actions such as breathing, shivering, and maintaining posture

Question 3

Cardiac muscle is responsible for

Answer 3

The beating of the heart

Question 4

Smooth muscle is responsible for

Answer 4

Movement in many hollow internal organs, such as the digestive system, bladder, and blood vessels
Is under control of the automatic (involuntary) nervous system

Question 5

Which type of muscle is unique to vertebrates?

Answer 5

Cardiac

Question 6

What are sarcomeres?

Answer 6

The units of contraction