Science: Human Body Systems

The stomach is an organ that __________.

Which system breaks down food into minerals that your body can use?

Materials your body cannot use are called?

Small food particles travel from here into the blood.

Where does your heart pump deoxygenated blood?

When you exhale or breathe out, your body releases _____________.

The heart pumps ________.

What system of organs brings oxygen into your body?

The circulatory system connects ___________________.

Enzymes in your saliva change ____________________.

The heart has how many chambers?

Arteries are found in which body system?

The esophagus __________________________.

Where does digestion start?