System in which blood is contained within a network of blood vessels

A waste product found dissolved in blood plasma that is expelled from the body in the lungs

An organ that produces enzymes and can secrete insulin

Breaks down toxins, such as alcohol, and processes nutrients into forms easier for the rest of your body to use.

Long hollow tube where most absorption of nutrients occurs

The breaking down of food with enzymes

physical process of breaking up large fat globules into smaller globules, thereby increasing the surface area that enzymes can use to digest the fat

enzyme that digests protein

the movement of digested food molecules into the cells of the body where they are used, becoming part of the cells

The components of the human body involved with respiration