Skeletal System
Digestive System
Respiratory System
Muscular System
Name that part.
100

This part of the skeleton is composed of several bones and protects the brain.

What is the skull/ cranium?

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

A unit of muscle fibers working together forms this.

sarcomere

100

This part stores bile.

gall bladder

200
The leg bone which connects to the hip.
What is the femur?
200
Food travels down this long tube from the mouth to the stomach.
What is the esophagus?
200
Small sacks in the lungs which allow oxygen and carbon dioxide to move between the lungs and blood stream.
What are aveoli?
200

Muscles have these two fibers that contract during exercise. What are they called?

actin

myosin

200

This organ makes hydrochloric acid to break down food chemically.

stomach

300

Bones serve these two main jobs.

support/ protection

making blood cells

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 gas is in the air we breathe and we need it to survive.

What is oxygen?

300

Voluntary muscles  that move on command to move your body are this muscle type.

skeletal muscle

300

The windpipe that connects the throat to each lung

trachea

400
The internal, and spongy, portion of the bone that produces blood cells.
What is the marrow?
400
Double Jeopardy: This chemical aids in digestion by speeding up chemical reactions.
What is an enzyme?
400

This gas is exhaled by animals, but plants "breathe" it in and use it in photosynthesis to make sugar and  produce oxygen.

What is carbon dioxide?

400

Muscles found in your heart that cause it to beat involuntarily.

cardiac muscle

400

The two cavities in the head that can take it air.

nasal cavity

oral cavity

500
The term of the vestigial tail found in humans.
What is the coccyx?
500
The name for the soft tissue that hangs down in the back of the mouth.
What is a uvula?
500
A disease in the lungs caused by breathing in harmful chemicals.
What is emphysema (or lung cancer)?
500

The type of muscle that makes up the inside of your digestive tract to move food along involuntarily.

smooth muscle

500

The chemical in blood that carries oxygen to the cells.

hemoglobin

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