Chapter 22

Question 1

Major function of respiratory system

Answer 1

cellular respiration

Question 2

Pulmonary ventilation

Answer 2

movement of air into and out of lungs

Question 3

Pressure greater in lungs than atmospheric

Answer 3

exhale

Question 4

Different sounds you make

Answer 4

due to shape and how everything interacts in the vocal cords

Question 5

How many dead macrophages/hour carried by cilia to throat and swallowed?

Answer 5

2 million

Question 6

Tidal volume

Answer 6

amount of volume that is breathed in and out of lungs each breath

Question 7

Left lung lobes

Answer 7

two

Question 8

Right lung lobes

Answer 8

three

Question 9

Each lung lobe separated

Answer 9

by connective tissue septa

Question 10

Parasympathetic fibers in lungs

Answer 10

cause bronchoconstiction

Question 11

Sympathetic fibers in lungs

Answer 11

cause bronchodilaton

Question 12

What drive ventilation and gas exchange?

Answer 12

pressure and concentration gradient

Question 13

Low pressure

Answer 13

high volume

Question 14

Inspiratory reserve volume

Answer 14

amount of air that can be inspired forcibly beyond the tidal volume

Question 15

How much oxygen is dissolved in plasma?

Answer 15

1.5%

Question 16

Where are the neural controls of respirations?

Answer 16

pons and reticular formation of medulla

Question 17

Phrenic nerve

Answer 17

innervates the diaphragm

Question 18

Most powerful respiratory stimulant

Answer 18

CO2 levels