Musculoskeletal System
Digestive and Renal Systems + Health and Nutrition
Cardiovascular System
Nervous System
Integumentary and Immune System
100

These are the two types of bone marrow. 

What are red and yellow?

100
These two signs tell us when we are dehydrated.

What are thirst and dark urine?

100

This is where your blood cells are made. 

What is the red bone marrow?

100

These three things make up the nervous system. 

What are the brain, spinal cord, and nerves?

100
This is an organism that can invade your body and do harm.

What is a pathogen?

200

This mineral makes your bones strong and hard. 

What is calcium?

200

This muscle is mostly responsible for breathing.

What is the diaphragm? 

200

These are the four blood types.

What are A, B, O, and AB?

200

This is the function of a sensory neuron.

What is takes information TO the spinal cord and brain?

200

These three parts of the integumentary system grow at the base and new cells push old ones away from the base.

What are skin, hair, and nails?

300

The longest bone in your body.

What is the femur?

300

This is the hardest substance in your body.

What is enamel?

300

These are the four chambers of your heart.

What are the left and right atria and ventricles?

300

This is the function of a motor neuron.

What is takes information from the brain and spinal cord TO the muscles and organs of the body?

300

This fluid is designed to cool your skin.

What is sweat?

400

The three kinds of muscle tissue in your body.

What are Skeletal, Cardiac, and Smooth?

400

This fluid, produced in your mouth, starts chemical digestion and makes food taste better.

What is saliva?

400

This is what you are hearing when your heart beats. 

What are the valves opening and closing?

400

This is the function of the endocrine system.

What is makes and releases hormones?

400

These are the two layers of the skin. 

What are the epidermis and dermis?

500

Muscles have a lot of these to give them energy.

What are mitochondria? 

500

This organ removes excess salts, water, and other substances from blood and puts them in urine.

What is a kidney?

500

These are the four basic components of blood. 

What are plasma, red blood cells, white blood cells, and platelets. 

500

These are the four lobes in the cerebrum. 

What are the frontal, parietal, temporal, and occipital?

500

These give the body a weakened or inactive pathogen, stimulating adaptive immunity. 

What are vaccines?

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