Excretory System
Digestive System
Respiratory System
Nervous System
Circulatory System
100

These are the two main organs of the excretory system?

What are the kidneys?

100
These structures, also part of the skeletal system, crush that has entered the mouth.
What are the teeth?
100
These balloon like sacs that inflate and deflate, bringing air into and out of the body.
What are the lungs?
100
Tiny cells which send signals to the brain. They are also known as nerve cells.
What are neurons?
100
These disc shaped cells transport oxygen from the lungs to the other parts of the body.
What are red blood cells?
200

This is made when the liver breaks down protein, and is later removed from the body in urine.

What is urea?

200

Food travels down the esophagus using this muscle contraction

What is peristalsis?

200

Describe the pathway of oxygen including all important structures it passes through. 

What is the nose, pharynx, larynx, trachea, bronchi, bronchioles, alveoli, and finally capillaries? (answers that leave out bronchioles or capillaries may be accepted)

200
The central nervous system is composed of the brain as well as this long structure that extends down the back and is the connector between the brain and all other parts of the body.
What is the spinal cord?
200

What is the purpose of the circulatory system?

What is deliver nutrients throughout the body?

300

Each kidney is made up of approximately 1 million specialized filtering cells.

What are nephrons?

300
The millions of tiny finger-shaped structures that cover the inner surface of the small intestine and provide a large surface area through which digested food is absorbed.
What are the villi?
300
This chemical is in the air we breathe and we need it to survive.
What is oxygen?
300

Bundles of fibers found throughout the body that sends electrical impulses to and from the brain to the other body structures are part of what section of the nervous system?

What is the peripheral nervous system?

300
The chamber in the heart that pushes blood out of the heart and to the other parts of the body.
What is the ventricle?
400

What do the kidneys filter?

What is blood?

400

This chemical aids in digestion by speeding up chemical reactions.

What is an enzyme?

400

This muscle is what allows the lungs to fill with air.

What is the diaphragm?

400

A quick, automatic response to a stimulus that does not travel all the way to the brain.

What is a reflex?

400

What are the three blood vessels in order of smallest to largest?

What are capillaries, veins, and arteries?

500

What is the purpose of the excretory system? Be specific!

What is eliminate/excrete nitrogenous wastes?

500

What are the two accessory organs of the digestive system?

What are the liver and pancreas?

500

Describe the process of gas exchange. 

What is the diffusion of gasses between the alveoli and capillaries high to low?

500

What are the three main sections of the brain?

What are the cerebrum, cerebellum, and brain stem?

500

Explain the path of blood through the body (include pulmonary and systemic and oxygen levels)

What is blood from the body goes to the lungs to pick up oxygen (pulmonary circulation), which then returns to the heart to be pumped out to the rest of the body (systemic circulation)?

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