Module 6 - Respiratory

Question 1

breathing) – mechanical process that moves air into and out of the lungs

Answer 1

ventilation

Question 2

between blood and lungs and between blood and tissues

Answer 2

gas exchange

Question 3

ventilation and gas exchange in lunchs

Answer 3

external respiration

Question 4

oxygen utilization and gas exchange in tissues

Answer 4

internal respiration

Question 5

O2 concentration is higher in the lungs than in the blood, so

Answer 5

o2 diffuses into the blood

Question 6

CO2 concentration is higher in the blood than the lungs so

Answer 6

CO2 diffuses out of the blood

Question 7

gets air to the respiratory zone

Answer 7

conduction zone

Question 8

site of gas exchange

Answer 8

respiratory zone

Question 9

• Transports air to the lungs
• Warms, humidifies, filters, and cleans the air
• Mucus traps small particles, and cilia move it away from the lungs. (mucociliary escalator)
• Voice production in the larynx as air passes over the vocal folds

Answer 9

conduction zone

Question 10

95-97 percent total surface area, where gas exchange occurs

Answer 10

type 1 alveoli

Question 11

secrete pulmonary surfactant and reabsorb sodium and water, preventing fluid buildup

Answer 11

type 2 alveoli

Question 12

lines the thoracic wall

Answer 12

parietal pleura

Question 13

covers the lungs

Answer 13

visceral pleura

Question 14

The parietal and visceral pleura are normally pushed together, with a potential space between called the

Answer 14

intrapleural space

Question 15

is a dome-shaped skeletal muscle of respiration that separates the thoracic and abdominal cavities

Answer 15

diaphragm

Question 16

air moves from — to —- pressure

Answer 16

high to low

Question 17

pressure of air outside the body

Answer 17

atmospheric pressure

Question 18

pressure in the lungs

Answer 18

intrapulmonary pressure

Question 19

pressure within the intracellular space, contains a thin layer of fluid to serve as a lubricant

Answer 19

intrapleural pressure

Question 20

Intrapulmonary pressure is lower than atmospheric pressure.

Answer 20

inspiration

Question 21

Intrapulmonary pressure is greater than atmospheric pressure.

Answer 21

expiration

Question 22

Lower than intrapulmonary and atmospheric pressure in both inspiration and expiration

Answer 22

intrapleural pressure

Question 23

Keeps the lungs against the thoracic wall and allows the lungs to expand during inspiration

Answer 23

transpulmonary pressure

Question 24

States that the pressure of a gas is inversely proportional to its volume

Answer 24

boyles law

Question 25

the diaphragm —– during inspiration – lowers, making the thoracic cavity larger

Answer 25

contracts

Question 26

the diaphragm —- in expiration – raises, making the thoracic cavity smaller

Answer 26

relaxes

Question 27

raises the rib cage during inspiration

Answer 27

external intercostal muscles

Question 28

lowers the rib cage during forced expiration

Answer 28

internal intercostal muscles

Question 29

works with the external intercostals

Answer 29

parasternal intercostals muscles

Question 30

used for forced inspiration

Answer 30

scalenes, pectoralis minor, and SCM

Question 31

used for forced expiration

Answer 31

abdominal muscles

Question 32

The total pressure of a gas mixture is equal to the sum of the pressures of each gas in it.

Answer 32

Daltons law

Question 33

the amount of gas that can dissolve in liquid depends on solubilty, temperature, and partial pressure

Answer 33

henry’s law