Respiratory System
What does the respiratory system do?
bring oxygen to our body
What does the digestive system do?
Gives us energy from food
The large intestine removes _______ from food.
water; moisture
Name two functions of the saliva.
helps us speak; softens/breaks down food; helps food go down the esophagus
Where does the oxygen that we breathe go in our body?
Into the blood, delivered to all our body parts
Which is longer: small intestine or large intestine?
small intestine
The _______ occurs in the alveoli.
Gas exchange
What creates saliva?
What is the gas that we breathe out?
Carbon dioxide
Why do we have saliva?
to help food go down the esophagus; to break down our food
Why does the diaphragm contract when we breathe in?
Make room for the lungs
What can we NOT store in our bodies?
oxygen
How can we keep our lungs healthy?
Exercise
Why doesn't the stomach get burned by the hydrochloric acid?
There is a mucus lining in the stomach
What two tubes are in the throat?
Esophagus and trachea
Where can indigestion happen?
Stomach, small intestine, large intestine
Which lung is smaller, and why?
Left lung; to make room for the heart
The _______ absorbs nutrients from our food.
Villi
What is the function of the liver and pancreas?
Produce chemicals to help us digest
The partly digested food that exits our stomach is called _________.
Chyme