Chapter 30 - Skeletal Structure and Muscle Movement

Question 0

What are the three different types of skeleton?

Answer 0

Hydrostatic - made of fluid under pressure in a composed department
Exoskeleton - rigid external skeleton made of chitin
Endoskeleton - protect soft tissues

Question 1

What is the function of a skeleton?

Answer 1

Movement, support, and protection

Question 2

What are the two types of bone marrow?

Answer 2

Yellow - stores fat

Red - produces blood cells

Question 3

What are the three types of joints?

Answer 3

Ball and socket - shoulder
Hinge - allow movement in a single plane
Pivot joint - can twist sideways

Question 4

What are the three types of muscle tissue?

Answer 4

Skeletal - any place where your muscles contract
Smooth -
Cardiac -

Question 5

What is the functional unit of muscle?

Answer 5

Sarcomere

Question 6

What is muscle composed of?

Answer 6

Two filaments called myosin and actin

Question 7

How does the muscle know when to contract?

Answer 7

A neuron attaches to the muscle and then the muscle will contract