1. Section 2 The Muscular System
DEFINE
CARDIAC MUSCLE
VOLUNTARY MUSCLE
SKELETAL MUSCLE
INVOLUNTARY MUSCLE
TENDON
MUSCLE
SMOOTH MUSCLE

2. Section 2 The Muscular System
TYPE OF MUSCLE
VOLUNTARY OR INVOLUNTARY
WHERE FOUND IN YOUR BODY
SKELETAL
MUSCLE
CARDIAC
SMOOTH

3. Section 2 The Muscular System
HOW DO MUSCLES WORK IN PAIRS?
COMPLETE
Blood carries 1.___________________ to your muscle cells. When your
muscles contract, 2._________________ from these molecules is converted to
3. _____________ and 4. _______________. When the supply of 5.________
in the muscle is 6._________, the muscle becomes ____________. As the
muscle ________________, blood brings more ________________ to your
muscle cells.

4. Section 2 The Muscular System
What is the role of muscles in the body?
Draw each type of lever found in the human body.
Label the fulcrum, load, and direction
First -class lever
Second -class lever
Third- class lever

5. Section 2 The Muscular System
Suppose a woman began riding her bike more regularly instead of watching TV. Evaluate what kinds of changes in her leg muscles she might start seeing. Explain why this occurs.