Question

The Human Respiratory System

Label the parts of the human respiratory system.

alveoli

bronchi

bronchiole

diaphragm epiglottis

larynx

lung

mouth nasal

passage

nostris pharynx

pleura

trachea

Gas Exchange

The table shows what happens to the air we inhale.

Gas

oxygen (Q.)

carbon dioxide (CO)

water (HO)

Inhaled

20.71%

0.04%

1.25%

Exhaled

14.6%

5.9%

L What gas is removed from inhaled air?

2. What gases are added to inhaled air and then exhaled?

and 3. Which gas shows the greatest difference in percent between inhaled and exhaled air?

Complete each sentence.

Inspired air, rich in

or

and

each

the air sacs or

in the

the

membrane. In the alveol

enters the body through the I passes through the

or voice box, and into the which branches into

of the L

Air then enters and finally into

The lungs are housed

cavity that is bound on the bottom by a thin layer of muscle,

Each lung is covered by a very thin

s exchanged for oxygen.​

Answer 1

Answer:

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Answer 2

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