Lecture 11

Question 1

bronze medal winner sti

Answer 1

syphallis

Question 2

respiratory zone

Answer 2

1. site of gas exchange
2. consists of bronchioles, alveolar ducts, and alveoli

Question 3

conducting zone

Answer 3

1. provides rigid conduits for air to reach the sites of gas
   exchange
2. includes all other respiratory structures [e.g., nose, nasal cavity, pharynx, trachea]

Question 4

primary respiratory muscles

Answer 4

diaphragm and external intercostals

Question 5

hairs in nose that filter coarse particles from air

Answer 5

vibrissae

Question 6

smell receptors in the

Answer 6

olfactory mucosa

Question 7

bones of nose

Answer 7

ethmoid, sphenoid, cribriform plate

Question 8

protrusions in nasal cavity that increase surface area

Answer 8

conchae or turbinates

Question 9

Regions of pharynx

Answer 9

Question 10

auditory tubes that open into lateral walls of nasopharynx

Answer 10

pharyngotympanic

Question 11

opening between the true vocal cords

Answer 11

glottis

Question 12

Answer 12

Valsalva’s maneuver

Question 13

defined by the presence of alveoli

Answer 13

respiratory zone

Question 14

Answer 14

lookit!

Question 15

how many alveoli in each lung?

Answer 15

300 million

Question 16

terminal bronchiole

Answer 16

Question 17

air-blood barrier

Answer 17

alveolar and capillary endothelium
their fused basal laminas [= basement membrane]

Question 18

alveolar walls made of what

Answer 18

A single layer of type I cells
and type II cells

Question 19

Type I alveolar cells do what

Answer 19

permit gas exchange by simple diffusion
secrete angiotensin converting enzyme [ACE]

Question 20

type II alveolar cells do what?

Answer 20

secrete surfactant

Question 21

study dis!

Answer 21

Question 22

thin,double-layeredserosa

Answer 22

pleurae

Question 23

-covers the thoracic wall and superior face of the diaphragm
-continues around heart and between lungs

Answer 23

parietal pleura

Question 24

Answer 24

visceral, or pulmonary, pleura

Question 25

know dat!

Answer 25

Question 26

pressure within the alveoli

Answer 26

intrapulmonary pressure

Question 27

pressure within the pleural cavity

Answer 27

intrapleural pressure

Question 28

learn about it!

Answer 28

Question 29

the relationship between the pressure and volume of gases P1V1 = P2V2

Answer 29

Boyle's Law

Question 30

this will be on the test baby

Answer 30

Question 31

this too

Answer 31

Question 32

negative pressure in the lungs?

Answer 32

inhalation

Question 33

positive pressure inside the lungs?

Answer 33

exhalation

Question 34

study away Jay

Answer 34

Question 35

Answer 35

Pactus Carinatum

Question 36

Answer 36

Pectus excavatum

Question 37

Answer 37

Barrel Chest

Question 38

air that moves into and out of the lungs with each breath [approximately 500 ml]

Answer 38

tidal volume [TV]

Question 39

air that can be inspired forcibly beyond the tidal volume [2100–3200 ml]

Answer 39

inspiratory reserve volume [IRV]

Question 40

air that can be evacuated from the lungs after a tidal expiration [1000–1200 ml]

Answer 40

expiratory reserve volume [ERV]

Question 41

air left in the lungs after strenuous expiration [1200 ml]

Answer 41

residual volume [RV]

Question 42

total amount of air that can be inspired after a tidal expiration [IRV + TV]

Answer 42

inspiratory capacity [IC]

Question 43

amount of air remaining in the lungs after a tidal expiration [=RV + ERV]

Answer 43

functional residual capacity [FRC]

Question 44

the total amount of exchangeable air [=TV + IRV + ERV]

Answer 44

vital capacity [VC]

Question 45

sum of all lung volumes [approximately 6000 ml in males]

Answer 45

total lung capacity [TLC]

Question 46

volume of the conducting respiratory passages [150 ml]

Answer 46

anatomical dead space

Question 47

alveoli that cease to act in gas exchange due to collapse or obstruction

Answer 47

alveolar dead space

Question 48

sum of alveolar and anatomical dead spaces

Answer 48

total dead space

Question 49

an instrument consisting of a hollow bell inverted over water, used to evaluate respiratory function

Answer 49

spirometer

Question 50

the amount of gas expelled during specific time intervals of the FVC [typically 1 and 3 seconds

Answer 50

forced expiratory volume [FEV]

Question 51

gas forcibly expelled after taking a deep breath

Answer 51

forced vital capacity [FVC]

Question 52

total amount of gas flow into or out of the respiratory tract in one minute

Answer 52

total ventilation

Question 53

Healthy FEV

Answer 53