| Incisors, canines, bicuspids, and ____ are types of teeth. |
atria (atriums) |
| Arterioles and venules are linked by tiny ____. |
bronchi |
| The ____ are the two upper chambers of the heart. |
capillaries |
| Your trachea divides into two main ____ that lead to your lungs. |
cartilage |
| The structure of your ears and nose is made of ____. |
molars |
| Blood travels from your legs to your heart through ____. |
muscles |
| Biceps and triceps are upper arm ____. |
veins |
| Your spine (backbone) is made of 33 bones called ____. |
vertebrae |
