Muscular
Digestive
Respiratory
Circulatory
Cardiovascular
100

A soft tissue by bones to help you move.

What is Muscle?

100

The process that breaks down food for your body to use as energy.

What is Digestion?

100

Branches of the trachea that go into the left and right lungs.

What is Bronchi?

100

A cell in the blood that carries oxygen.

What is Red Blood Cell?

100

The pressure of blood against blood vessels (from contractions in the heart).

What is Blood Pressure?

200

Muscles that work on their own to contract and relax by the heart.

What is Cardiac Muscle?

200

A liquid in your mouth that can help break down food.

What is Saliva?

200

Air sacs in the lungs that help exchange gases.

What is Alveoli?

200

A cell in the blood that helps protect you from infections and bacteria (also has no color).

What is White Blood Cell?

200

The membrane that is around the heart.

What is Pericardium?

300

Muscles that work on their own by the blood vessels, stomach, and small intestines.

What is Smooth Muscle?

300

An organ that helps to clean the blood.

What is Liver?

300

A muscle underneath the lungs that helps with breathing.

What is Diaphragm?

300

A tube that helps blood travel away from the heart.

What is Artery?

300

The muscular tissue of the heart.

What is Myocardium?

400

When you react automatically and do not have control over it.

What is Reflex?

400

A gland that creates digestive liquids (and insulin).

What is Pancreas?

400

Muscle tissue by the windpipe that allows you to talk and sing.

What is Vocal Cords?

400
A tube that helps blood travel to the heart.

What is Vein?

400

The two upper chambers of the heart.

What is the Atrium?

500

A tough band that connects your muscles to your bones.

What is Tendon?

500

A pair of organs that clean out waste and water from the blood.

What are Kidneys?

500

Fill with air to help you breathe.

What are lungs?

500

Small blood vessels that are at the end of arteries and the beginning of veins.

What is Capillary?

500

The flaps that open and close, controlling the flow of blood.

What is Valve?