Circulatory System
Respiratory System
Skeletal and Muscular Systems
Nervous system
Digestive and Excretory Systems
100
Blood vessels that carry blood away from the heart.
What is arteries?
100

A dome-shaped muscle beneath your lungs.

What is the diaphragm?

100

The number of bones in your skeletal system.

What is 206?

100

Another name for nerve cells.

What is neuron?

100

Digestion begins here.

What is in the mouth?

200
Blood vessels that carry blood to the heart.
What are veins?
200

The tube that carries air to the lungs.

What is the trachea?

200

Where your blood is formed.

What is bone marrow?

200

The largest part of your brain that controls learning and reasoning.

What is the cerebrum?

200

The stomach contains these, to help break down food.

What are digestive enzymes?

300
The smallest blood vessels.
What are capillaries?
300

Tubes that can become swollen if a person has asthma.

What are the bronchial tubes?

300

These two systems work together to allow movement of the body.

What are muscular and skeletal systems?

300

Also called "little brain"; it controls balance.

What is the cerebellum?

300

These are found in the small intestine to allow more surface area to absorb nutrients.

What are villi?

400
The only muscle in the circulatory system.
What is the heart?
400

Tiny flap that covers the larynx when eating.

What is epiglottis?

400

Muscle tissue of the heart.

What is cardiac tissue?

400

A long bundle of nerves protected by your vertebra?

What is the spinal cord.

400

A pair of organs that remove waste from your blood.

What are kidneys?

500

These keep blood flowing in the right direction inside the heart.

What are valves?

500

Also called your voice box.

What is the larynx?

500

Muscle tissue of the digestive system and blood vessels.

What is smooth muscle?

500

The two parts of the central nervous system.

What are the brain and spinal cord?

500

A hollow organ that stores liquid waste.

What is the bladder?