| A | B |
|---|
| Clavicle | another name for collarbone |
| femur | largest bone in the body |
| cranium | protects the brain |
| patella | another name for kneecap |
| hinge joint | joint that only moves back and forth |
| ball and socket joint | joint that allows the bones to move in a circle |
| tendon | connects bone to muscle |
| ligament | connects bone to bone |
| marrow | responsible for producing blood cells |
| ribs | bones that protect the heart and lungs |
| fixed joint | no movement between bones |
| cartilage | tough, stretchy tissue that prevents the bones from rubbing together |
| spine | made up of 22 bones |
| voluntary | muscles that you control |
| involuntary | muscles you cannot control |
| smooth muscle | found in the intestines, esophogus and blood vessels |
| cardiac muscle | tissue that makes up the heart |
| skeletal | muscle tissue attached to the bones |
| ulna | bone found in the lower part of the arm |
| tibia | bone found in the lower leg |
