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