| A | B |
|---|
| muscular system | muscles and connective tissue |
| smooth muscle | found in the digestive tract and blood vessels |
| cardiac muscle | found in the heart |
| skeletal muscles | attached to bones for movement |
| voluntary | muscles that you can control |
| involuntary | muscles that is not under your control |
| tendons | connect skeletal muscles to bones |
| flexor | the muscle that causes your body to bend |
| extensor | muscle that straightens part of your body |
| resistance exercises | develop size and strength of skeletal muscles |
| aerobic exercises | strehgthens the heart & increases endurance |
| warm-up / cool-down | important to prevent muscle injury |
| anabolic steroids | threaten heart, liver, kidneys and cause high blood pressure |
