Final: Overview of Respiration (DO THIS 1st) Flashcards Preview

Pathophysiology > Final: Overview of Respiration (DO THIS 1st) > Flashcards

Flashcards in Final: Overview of Respiration (DO THIS 1st) Deck (22):
1

in alveoli __ enters blood from alveolar gas; __ leaves blood for gas

O2, CO2

2

in tissues __ leaves blood for tissues (by way of interstitial space); __ enters blood from tissues

O2, CO2

3

internal respiration consists of use of __ and production of ___ by cells

O2, CO2

4

gas exchange between interstitial fluid and cells is what type of respiration?

internal

5

pulmonary ventilation works by a ______ gradient

pressure

6

if you increase the volume you ______ pressure, and if you decrease the volume you ______ pressure

decrease, increase

7

how are the visceral and parietal pleura held together

by surface tension

8

during ventilation, the diaphragm _____ and the external intercostals ____ the ribs

flattens, raise

9

if thoracic volume increases, lung pressure ______ and air _____ the lungs

decreases, enters

10

if the muscles relax the lungs pull _______ and the chest is also pulled ________

inward, inward

11

when lung volume is decreased, lung pressure is _______ and air ______ the lungs

increased, leaves

12

during inhalation, the intrapulmonary pressure is ___ and during exhalation it is _____

less than 0, greater than 0

13

what is the intrapleural pressure throughout the respiratory cycle

less than 0

14

lung volume raises during ______ and falls during _______

inhalation, exhalation

15

TLC

total lung capacity

IRV + VT + ERV + RV

16

FRC

functional residual capacity

ERV + RV

17

VC

vital capacity

IRV + VT + ERV = TLC - RV

18

VE

VT x f (500ml/breath x 12 breaths/min = 6L/min)

19

VA

(VT - VD) x f (VD ~1ml/lb weight)

20

ERV

expiratory reserve volume

21

IRV

inspiratory reserve volume

22

Vt

resting tidal volume

500ml