Blood
Blood vessels
respiratory system
fun facts
organs
100

what blood cells fight of germs 

white blood cells 

100

what color are veins.

blue 

100

what is at the end of the bronchial 

alveoli 

100

what is the only organ that floats 

lungs 

100

why is the left lung smaller then the right?

to make room for the heart 

200

what are two colors that blood cells can come in?

Red, White 

200

what are the 3 parts of the blood vessels?

veins, capillaries, arteries

200

what dose the the bronchi branch of to.

the bronchial tree

200

why do you yawn

to increase air flow in your body

200

what dose your diaphragm do when you inhale.

moves down 

300

what causes bruises.

blood leaking under the skin

300

what do your veins do.

bring blood back to the heart

300

how meany alveoli do you have 

about 600 million 

300

how meany times dose your heart beat a minute. 

60-100

300

whats another name for your throat 

pharix 

400

how meany chambers are in your heart?

4

400

what do capillaries do?

spread pumped blood away from the heart. 

400

why do you hiccup 

diaphragm spasm 

400

how meany ribs do you have?

24 or 12 pairs 

400

what filters dust and food out of your airways 

cillia 

500

how meany red blood cells dose your body produce in a second.

2 million+

500

why are veins blue?

because of how light penetrates the skin

500

what dose your larynx do. 

helps air flow and helps you talk 

500

around how meany breaths of air do you take a day.

12,000

500

how meany organs are in the human body 

78-80