B7 L6

Question 1

Conducting Zone

Answer 1

Nose, sinus, larynx, trachea, bronchi, bronchioles, terminal bronchioles
conditions air before it reaches lungs

Question 2

Respiratory Unit

Answer 2

respiratory bronchioles, alveolar ducts, alveoli

where gas exchange occurs

Question 3

M3 Receptors

Answer 3

parasympathetic

constrict bronchioles

Question 4

B2 Receptors

Answer 4

sympathetic

dilate bronchioles

Question 5

Alveoli

Answer 5

site of gas exchange
thin walled, elastic, large SA
surrounded by pulmonary capillaries

Question 6

Surfactant

Answer 6

lines alveoli

made by Type 2 epithelial cells

Question 7

Interstitium

Answer 7

everything not the respiratory tree

Question 8

Small alveoli =

Answer 8

large interstitium

Question 9

Large alveoli =

Answer 9

smaller interstitium

Question 10

Visceral Pleura

Answer 10

against lung

Question 11

Parietal Pleura

Answer 11

against chest wall

Question 12

Interpleural Space

Answer 12

filled with fluid

keeps lungs inflated by keeping them attached to chest wall

Question 13

Pressure in Interpleural Space is…..

Answer 13

Negative

Question 14

Tidal Volume

TV

Answer 14

air moved during normal breathing

500mls (.5L)

Question 15

Inspiratory Reserve Volume

IRV

Answer 15

max inhalation above TV

2000mls (2L)

Question 16

Expiratory Reserve Volume

ERV

Answer 16

max exhalation below TV

1000mls (1L)

Question 17

Residual Volume

RV

Answer 17

volume left after full exhalation

1300mls (1.3L)

Question 18

Vital Capacity

VC

Answer 18

volume that can be inhaled and exhaled

ERV + TV + IRV = 3500mls (3.5L)

Question 19

Inspiratory Capacity

IC

Answer 19

Volume of full inhalation after quiet exhalation

IRV + TV = 2500mls (2.5L)

Question 20

Functional Residual Capacity

FRC

Answer 20

volume in lung after quiet exhalation

ERV + RV = 2300mls (2.3L)

Question 21

Total Lung Capacity

TLC

Answer 21

total lung volume

IC + FRC = 4800mls (4.8L)

Question 22

Local Control

Answer 22

based on oxygen content of alveoli

keeps blood from non-ventilated alveoli

Question 23

Alpha 1

Answer 23

SNS

constricts arterioles

Question 24

Dead Space

Answer 24

volume of air not involved in gas exchange

Question 25

Anatomic Dead Space

Answer 25

set volume from conducting zone

150mls

Question 26

Physiologic Dead Space

Answer 26

Ventilated alveoli not involved in gas exchange

due to anatomic dead space and ventilated alveoli with no blood supply

Question 27

FEV1

Answer 27

forced expiratory volume in one second

Question 28

Forced Vital Capacity

Answer 28

Total volume forcefully exhaled after a full inspiration

Question 29

FEV1/ FVC

Answer 29

ratio measures lung function

80% or .8

Question 30

P

Answer 30

pressure of gas in an area

Question 31

V (with dot on top)

Answer 31

Gas Flow

Question 32

I

Answer 32

Inspired Air

Question 33

E

Answer 33

Expired Air

Question 34

Q

Answer 34

Blood Flow

Question 35

A

Answer 35

Alveolar Air

Question 36

a

Answer 36

dissolved arterial blood

Question 37

V (Location)

Answer 37

dissolved in venous blood

Question 38

PaO2

Answer 38

partial pressure of oxygen dissolved in arterial blood

Question 39

PAO2

Answer 39

partial pressure of oxygen in alveolar air

Question 40

PVO2

Answer 40

partial pressure of oxygen in venous blood