Pattern of Breath

Question 1

1. Air enters the _______ and is ________ by ________ ___________.

Answer 1

nostrils; warmed; mucus membranes

Question 2

2. ______ in the nose and _______ filter out small particles.

Answer 2

Cilia; trachea

Question 3

3. from the nasal cavity air enters the ________ (throat).

Answer 3

pharynx

Question 4

4. Then moves to the _______ (voicebox). Epiglottis is closed.

Answer 4

larynx

Question 5

5. Proceeds down the _______ (windpipe) which is about ______ inches long. Held open by __________ that is __-_________.

Answer 5

trachea; 4 1/2; cartilage; c-shaped

Question 6

6. Divides into _______ and _______ primary bronchi (bronchus).

Answer 6

right; left

Question 7

7. Each bronchi enters a lung and divides for each of the ___ lobes.

Answer 7

5

Question 8

8. Bronchi branch further, eventually becoming ____________.

Answer 8

bronchioles

Question 9

9. At the end of the bronchioles are the _______ (air bags).

Answer 9

alveoli

Question 10

10. The alveoli is where the _________ of ______ occur.

• What are the two?

Answer 10

exchange; gases

Carbon dioxide and oxygen