| Your ____ (kneecap) protects the front of your knee joint. |
artery |
| The black circular opening of the eye is the ____. |
carcinogen |
| Blood can be separated into cells and ____ (a yellowish liquid). |
gallbladder |
| A ____ is anything that promotes the formation of cancer. |
pancreas |
| The ____ secretes digestive enzymes, insulin, and glucagon. |
patella |
| Your knee is a hinge joint. Your ____ is a ball-and-socket joint. |
plasma |
| The aorta is the largest ____ leading away from the heart. |
pupil |
| The ____ is a small organ that stores bile. |
shoulder |
