Chapter 13

Question 1

only external and visible part of the respiratory system

Answer 1

nose

Question 2

muscles of respiratory system

Answer 2

diaphragm, internal/external intercostals

Question 3

septum

Answer 3

perpendicular plate in the vomer

Question 4

has voice box and epiglottis

Answer 4

larynx

Question 5

epiglottis is made of

Answer 5

elastic cartilage

Question 6

keeps air passages open

Answer 6

thyroid cartilage (type of hyaline cartilage)

Question 7

cilated mucosa lining the trachea is what type of tissue

Answer 7

pseudostratified cilated columnar epithelium

Question 8

cilia

Answer 8

finger like projections important for moving the mucus out of the airway and into the esophagus

Question 9

bronchi enter the lung at the

Answer 9

hilum

Question 10

lungs wrapped in

Answer 10

visceral pleura

Question 11

body cavity lined with

Answer 11

parietal pleura

Question 12

lobes in left and right lung

Answer 12

2 and 3

Question 13

pleural fluid

Answer 13

fluid in between visceral and parietal pleura that prevents sticking

Question 14

top of lung near clavicle

Answer 14

apex

Question 15

positive air pressure

Answer 15

in lungs means the lungs always have air in them so they don’t completely collapse

Question 16

alveolar pores

Answer 16

connect the different alveoli

Question 17

where gas exchange takes place

Answer 17

pulminary capillaries in the alveoli

Question 18

type of tissue found in alveoli

Answer 18

simple squamous epithelium

Question 19

air-blood barrier

Answer 19

formed by alveolar walls where blood in the capillaries meets the air so that gas exchange can take place

Question 20

moisturizes alveolar membranes

Answer 20

surfactant

Question 21

alveolar macrophages

Answer 21

protect gas exchange process from invasion from bacteria, foreign particles

Question 22

tidal volume moves about

Answer 22

500 ml of breath

Question 23

Inspiratory reserve volume

Answer 23

how much more you can forcibly breath in past tidal volume. about 3100 ml

Question 24

expiratory reserve volume

Answer 24

how much you can forcibly exhale after tidal volume. about 1200 ml

Question 25

residual volume

Answer 25

air remaining in lung after expiration. about 1200 ml

Question 26

vital capacity

Answer 26

tidal volume+ inspiratory reserve volume+ expiratory reserve volume. Men:4800 women: 3100

Question 27

dead space volume

Answer 27

air that never reaches the lungs. about 150 ml

Question 28

functional volume

Answer 28

air that actually reaches the respiratory zone. about 350 ml

Question 29

volition

Answer 29

conscious control of breathing

Question 30

most important factor for breathing rate

Answer 30

CO2 levels

Question 31

results when blood becomes alkaline

Answer 31

hypoventalation