Respiratory System
Digestive System
Circulatory System
Molecules
Review Questions
100

This substance is important so that air isn't too dry or dusty before entering your lungs

What is mucus?

100

Food enters the body through this structure

What is the mouth?

100

Where air enters the body so that it can be processed by the respiratory system before entering the heart

What is the nose or mouth?

100

This is the molecule that you breathe in (inhale)

What is oxygen?
100

This lung is the larger lung (hint: left or right?)

What is the right lung?

200

This structure is protected by rings of cartilage

What is the trachea?

200

Chewing your food is an example of this kind of digestion (hint: chemical or physical)

What is physical digestion?

200

These structures take oxygen away from the heart to other places in the body

What are arteries?

200

This is the name of the molecule that you breathe out (exhale)

What is carbon dioxide?

200

This condition makes it hard for oxygen to get into your respiratory system

What is asthma?

300

This muscle controls your breathing

What is the diaphragm?

300

The intestine that absorbs most of the nutrients

What is the small intestine?

300

These structures take used carbon dioxide from the body to the heart

What are veins?

300

This type of molecule breaks down into glucose

What are starches?

300

This condition makes you feel very tired and makes it very hard to want to eat

What is a pancreas injury?
400

These structures resemble a bunch of grapes

What are alveoli?

400
This organ stores bile - the acid your stomach uses to break down your food

What is the liver?

400

These kinds of blood vessels carry oxygen and carbon dioxide to and from other organs around the body

What are the systemic blood vessels?

400

This type of molecule makes up proteins

What are amino acids?

400

This condition doesn't allow starches or proteins to be broken down into glucose and amino acids

What is diabetes?

500

This is the name of the structure that holds the vocal cords

What is the larynx?

500

This structure makes sure you swallow food and inhale air so that food doesn't get into your lungs

What is the epiglottis?

500

These kinds of blood vessels are where blood gets "refueled" - they exchange their used carbon dioxide for fresh oxygen inhaled by the lungs

What are pulmonary blood vessels?

500

This system is responsible for carrying all molecules around the body

What is the circulatory system?

500

This condition doesn't let oxygen and other nutrients cycle around the body

What is anemia?