Question

part 1: muscle types
the body has three types of muscles: skeletal, smooth, and cardiac.

• skeletal muscle: moves bones, under voluntary control.
• smooth muscle: found in organs, involuntary control.
• cardiac muscle: found only in the heart, involuntary.

1. which type of muscle is under voluntary control?
2. which type of muscle is found in blood vessels?
3. which type of muscle pumps blood through the body?
4. true or false: skeletal muscle is involuntary.
5. circle all that apply: skeletal muscle helps to... a) move bones b) pump blood c) maintain posture d) digest food
6. what makes cardiac muscle different from smooth muscle?
7. what does it mean when a muscle is \involuntary\?

Explanation:

1. The text states skeletal muscle is under voluntary control.
2. Smooth muscle is found in organs including blood - vessels.
3. Cardiac muscle in the heart pumps blood.
4. Skeletal muscle is voluntary, so the statement is false.
5. Skeletal muscle moves bones and helps with posture.
6. Cardiac muscle is only in the heart while smooth muscle is in organs, and they have different contraction patterns.
7. Involuntary means the muscle's contractions are not consciously controlled.

Answer:

1. Skeletal muscle
2. Smooth muscle
3. Cardiac muscle
4. False
5. a) Move bones, c) Posture
6. Cardiac muscle is only in the heart, while smooth muscle is in various organs; also, their contraction mechanisms differ.
7. The muscle's contractions are not under conscious control.