Respiratory System

Question 1

What are the four functions of the respiratory system?

Answer 1

1. gas exchange (in with oxygen out with carbon dioxide)
2. sound production
3. olafaction
4. pH balance

Question 2

What is the function of the nasal cavities?

Answer 2

Cleaning, warming, humidifying air

Question 3

What are the organs of the respiratory system?

Answer 3

1. nasal cavities
2. pharynx
3. larynx
4. trachea
5. bronchi
6. bronchioles
7. alveoli

Question 4

Where does the larynx begin?

Answer 4

the hyoid bone

-voice box -> vocal cords

Question 5

what are the branches of the bronchi?

Answer 5

primary bronchi (R/L)
secondary bronchi (3R/2L)
and they continue to divide

Question 6

what occurs in the alveoli?

Answer 6

gas exchange

Question 7

what is an alveolar sac?

Answer 7

is 1 alveolar duct and the alveoli that the air is spread to

Question 8

what occurs at the alveolar wall? (alveolar type I cell)

Answer 8

gas exchange surface

Question 9

what kind of epithelium makes up the alveolar wall?

Answer 9

simple squamous

Question 10

what do alveolar type II cells do?

Answer 10

produce surfactant

Question 11

what does surfactant do?

Answer 11

reduces the work of breathing (keeping air sacs open

Question 12

what types of cells are in the alveolar sacs?

Answer 12

1. alveolar type I
2. alveolar type II
3. macrophage (monocyte)