Class 8: Respiratatory System Flashcards Preview

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Flashcards in Class 8: Respiratatory System Deck (100)
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1

Upper respiratory tract consists of

nose through larynx

2

lower respiratory tract consists of

trachea through lungs

3

Three parts of the pharynx

naso, oro, laryngo

4

nasopharynx passes only...

air

5

oropharynx and laryngopharynx pass...

air, food, and drink

6

components of larynx (voice box)

epiglottis, thyroid cartilage, cricoid cartilage

7

epiglottis function

flap of tissue that closes airway and directs food to the eophagus behind it

8

Thyroid cartilage defining features

largest, laryngeal prominence, shield shaped

9

cricoid cartilage function

connect larynx to trachea. it's ringlike

10

Trachea dimensions

12 cm long, 2.5 cm diameter

11

trachea is supported by 16-20 rings of

hyaline cartilage, c-shaped

12

function of rings

reinforce trachea and keep it from collapsing

13

lungs have # of lobes on right/left?

3/2

14

the costal surface of the lungs press against the

ribcage

15

the mediastinal surface of the lungs face

medially toward the eart

16

the hilum is

a slit through which the lung receives main bronchus, bld vessels, lymphatics, and nerves

17

the root of the lung consists of

bronchus, bld vessels, lymphatics, nerves

18

right lung is shorter because

the liver rises high on the right side

19

the left lung is taller and narrower because of the

heart tilting towards the left

20

visceral pleura is a

serous membrane that covers the lungs

21

parietal pleura is located

on the inner surface of the rib cage and superior surface of the diaphragm

22

the parietal pleura adheres to the

mediastinum

23

the pleural cavity is the

potential space between the pleurae

24

the functions of the pleura (3)

reduce friction, create a pressure gradient, compartimentalization

25

compartmentalization means that

an infection won't spread

26

bronchial tree parts (3)

main, lobar (secondary), segmental (tertiary)

27

main bronchi are supported by

c-shaped hyaline cartilage rings

28

the lobar bronchi are supported by

smaller bits of cartilage

29

how many lobar brochi supply each side?

3 on right- superior, middle, inferior, 2 on left- superior and inferior

30

all bronchi are lined with

ciliated pseudostratified columnar epithelium