The structure in your body that protects your lungs
What is your rib cage?
This muscle moves up and down changing the volume of air that moves in and out
What is the diaphragm?
Where does the first step of the digestive system take place?
The mouth
Small sacs in the lungs where gas exchange occurs
What are alveoli?
Which has more oxygen: inhaled air or exhaled air
What is inhaled air?
Ms. Smith has been sitting with her students reading, she gets up and carries a bunch of books to the front of the classroom--her heart rate will increase or decrease?
What is increase?
Breaking down of materials by breaking, tearing, crushing and mashing is called (a type of digestion)
What is mechanical digestion?
The two tubes that branch off from the trachea
What are bronchi?
True or False: Carbon Dioxide travels through veins
true
True or false: Oxygen travels through arteries and then gets dropped off in cells.
true
The breaking down of food into smaller pieces by substances like saliva or enzymes (a type of digestion)
What is chemical digestion?
How does the small intestines send nutrients to the rest of the body?
Through absorption into the blood stream.
This is also known as the windpipe
What is the trachea?
What is the main function of the large intestines?
Absorbs water and gets rid of waste