Show:
Skeletal System
Digestive System
Respiratory System
Nervous System
Circulatory System
100

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

Skull

100

These structures, also part of the skeletal system, crush that has entered the mouth.

Teeth

100

These balloon like sacs that inflate and deflate, bringing air into and out of the body.

Lungs

100

Tiny cells which send signals to the brain. They are also known as nerve cells.

Neurons

100

These disc shaped cells transport oxygen from the lungs to the other parts of the body.

Red blood cells

200

What is the largest bone in the human body.

Femur

200

Food travels down this long tube from the mouth to the stomach.

Esophagus

200

Small sacks in the lungs which allow oxygen and carbon dioxide to move between the lungs and blood stream.

Alveoli

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.

Spinal Cord

200

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

White blood cells

300

Where does blood production occur?

in the bones---bone marrow

300

How does food get to our stomachs? What is this process called?

Peristalsis

300

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

Oxygen

300

Bundles of fibers found throughout the body that sends electrical impulses to and from the brain to the other body structures.

Nerves

300

The chamber in the heart that pushes blood out of the heart and to the other parts of the body.

Ventricle 

400

What is the purpose of the skeletal system?

(2 major purposes)

Structure & blood production

400

What is mechanical digestion?

chewing food

400

This chemical is exhaled by animals, but plants "breathe" it in and use it to produce oxygen.

Carbon dioxide

400

Explain why someone who is paralyzed can not move specific parts of their body.

The spinal cord is damaged so the signal from the brain is not making it to the nerves which will activate movement. 

400

Part of the circulatory system and a vital part of the immune system that carries a clear fluid called lymph towards the heart.

Lymphatic System

500
The term of the vestigial tail found in humans.
What is the coccyx?
500
What is chemical digestion?

enzymes breaking down molecules

500

What do we consider to be waste in the respiratory system?

carbon dioxide

500

What is the cerebellum responsible for?

Coordination of voluntary movements, balance, poster and motor learning
500

Explain the job/purpose of the circulatory system.

The following must have been said:

Oxygenated, deoxygenated, heart, lungs