| A | B |
| What 3 things does the skeletal system include? | bones, cartilage, ligaments |
| What is the function of your bones? | Your bones give your body its form and protects many of your organs |
| What 2 things does the muscular system include? | muscles and tendons |
| How many bones are in an adult human skeleton? | 206 |
| What is the name for the spongy connective tissue that cushions the ends of many bones | cartilage |
| What is a connective tissue that holds bones together? | ligaments |
| Where are blood cells produced? | inside your largest bones |
| What is a group of muscle tissue held together by connective tissue called? | Skeletal muscles |
| How are skeletal muscles attached to bone? | tendons |
| What does it mean to say that skeletal muscles work in pairs? | First, one muscle contracts, causing the joint to bend. Then, the other muscle contracts, causing it to straighten. |
| Skeletal muscles are ______________ muscles because you can control them. | voluntary |
| What are the 2 kinds of muscles? | cardiac and smooth |
| Smooth muscles make up most of the walls of the body's ________. | organs |
| What does the term voluntary muscles mean? | you can control their movement |
| What does the term involuntary muscles mean? | you cannot control their movement |
| What two types of muscles are sometimes called involuntary muscles? | cardiac muscle and smooth muscle |
| Where do you find cardiac muscle? | In the heart |
| Where would you find smooth muscle? | in the lining of the stomach, the intestines, and your blood vessels |