Skeletal System
Digestive System
Respiratory System
Circulatory System
100
This part of the skeleton is composed of several bones and protects the brain.
What is the skull?
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
These disc shaped cells transport oxygen from the lungs to the other parts of the body.
What are red blood cells?
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

 These blood cells are a vital part of the body's immune system.

What are white blood cells?

300
The connection between the humerus an scapula in humans is this kind of joint.
What is a ball and socket joint?
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
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
The internal, and spongy, portion of the bone that produces blood cells.
What is the marrow?
400

While digestion starts in the mouth, most of the actual breakdown of food and absorption of nutrients into the bloodstream happens in this long organ

what is the small intestine

400
This chemical is exhaled by animals, but plants "breathe" it in and use it to produce oxygen.
What is carbon dioxide?
400

This carries blood away from the heart

Arteries

500

Name two other major functions of the skeletal system

What are 

  • Movement support (acts as levers for muscles)

  • Blood cell production (producing red/white blood cells inside red bone marrow)

  • Mineral storage (storing calcium and phosphorus for the body)

500
The name for the soft tissue that hangs down in the back of the mouth.
What is a uvula?
500

Breathing isn't just about your lungs; it relies on a large dome-shaped muscle beneath them

What is the diaphragm 

500
These chambers bring blood into the heart from elsewhere in the body.
What are the atria (singular: Atrium)?
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