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Flashcards in Respiratory Deck (21):
1

2 main portions of resp and functions

1. respiratory - alveoli, gas exchange
2. conducting - warm, humdifies, filters

2

4 layers of the trachea from in to out

1. mucosa
2. submucosa
3. cart.
4. adventitia

3

structure of mucosa

pseudostratified columnar epithelium with goblet cells sitting on lamina propria

4

6 types of cells in mucosa

1. ciliated - move mucous
2. goblets - sol phase of mucous
3. basal - proliferate
4. brush - sensory microvilli
5. kulchitsky - neuroendocrine secretory cells
6. dendritic - antigen presenting

5

3 things making up submucosa

1. loose connective tissue
2. seromucous glands
3. ducts

6

feature of cart. rings

open on posterior with smooth muscle that connects called trachealis

7

feat iof adventia

loose connective tissue surrounding cart.

8

4 layers of bronchi

1. mucosa
2. submucosa
3. cart.
4. adventitia

9

Diffs. between bronchi and trach.

1. mucosa - some smooth muscle
2. submucosa - same
3. cart. - irregular and less prominent
4. adventitia - same

10

diffes between bronchi and bronchioles

1. mucosa - even more smooth muscle
2. submucosa - gone
3. cart. - gone
4. adventitia - merges with mucosa - has elastic to prevent collapse

11

3 changes in mucosa in bronchioles

1. lose the goblets
2. then the cilia
3. clara cells appear - secrete similar stuff to surfactant, progentiors

12

enzyme that break down lung elastic

elastase

13

4 parts of resp. part of lung

1. resp. broncioles
2. alveoli
3. interalveolar septum
4. alveolar/cap bed

14

Feats . of resp. broncioles

broncioles broken by alveoli
- from the term bronchioles

15

Feat of alveoli

polyhedral units

16

connections between alveoli

pores of kohn

17

2 linings of alveoili and jobs

Type 1 pneumocytes - 40%#, 95% surface
Type 2 pneumocytes - 60%#, 5% surface, surfactant and proliferation

18

Feat. of interalveolar seprum

- fibroelastic CT
- pulmonary capillary plexus

19

Feat of alveolar cap. bed

- blood air barrier
- endothelial cells

20

anat of alveolar cap. bed

- type 1 pneumocytes with basement membranes

21

Features of pleaura

- simple sqaum. epi resting on thin layer of CT rich in collagen and elastin

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