The heart
What keeps the blood circulated
The heart
What tubes carry the blood around the body?
Blood vessels
True or false alveoli are called air sacs.
True
Is it true or false your heart beats faster when you exercise
True
How many types of blood vessels are there?
3
What do air sacs do?
Exchange the gas in lungs
Is it possible to transport oxygen and nutrients around the body without a heart
No it's not possible
What are the three main blood vessels?
Arteries, veins and capillaries
What else is the trachea called?
Windpipe
How many many chambers are in the atrea?
2
Do arteries carry oxygenated blood or deoxygenated blood?
Oxygenated blood
How many bronchi do humans have?
2 (1 for each lung)
What calves open and close? Open to let blood pass and close to keep blood from flowing back.
Aortic and pulmonic
What do capillaries connect to?
Arteries and veins
What two parts work together to enable you to breathe in and out?
Intercoastal muscles and the diaphragm