Unit 9

Body parts, such as the lungs and the heart, that are inside the body

A network of cells and tissues that fight infection and disease in the body.

The movement of blood inside the body.

A way of living involving little or no physical activity.

An illness of the heart and blood vessels.

A constant ache.

The body's ability to process food.

Measures of the fatty substance that is found in the blood.

Unwanted results of something.

The force at which the blood moves through the body.