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Flashcards in Respiratory Handout Notes Deck (33):
1

What is the purpose of serous fluid in the pleural cavity?

Allows pleural (serous) membranes to move past each other with little friction and helps keep the lungs partially expanded.

2

Functions of respiratory type epithelium

Warm humidify inspired air
Provide an immunological defense and ciliary clearing action
Provide sense of smell

3

What physical structure helps nasal cavity to warm and humidify air?

Conchae

4

Delivers air to lungs

Conducting portion

5

Where O2 and CO2 are exchanged in blood

Respiratory portion

6

Name conducting portion structures

Nasal cavity
Larynx
Trachea
Bronchi

7

Nasal cavity epithelium

Olfactory epithelium (PSCC w/o goblet)

Respiratory epithelium (PSCC w/goblet)

8

Olfactory epithelium of nasal cavity contents (4)

PSCC
Supporting cells
Olfactory bipolar neurons
Basal cells
Bowman's glands present in lamina propria

9

Respiratory epithelium of nasal cavity contents(4)

PSCC
Ciliated columnar cells
Basal cells
Goblet cells
Seromucus glands

10

Contents of trachea (4)

PSCC w/goblet cells
C-shaped cartilage
Smooth muscle, trachealis muscle
Fibroelastic CT
Submucosal glands

11

What weird cells are scattered within respiratory tract

Amino precursor uptake decarboxylation cells (APUD)

Diffuse neuroendocrine cells (DNES)

12

What provides structural support to trachea and good ID

Incomplete cartilaginous rings

13

Important fxn of trachea

Coat surface with viscous film via goblet cells and submucosal glands

14

What is made of irregular cartilage plates, PSCC, spiraling smooth muscle and a part of the conducting airway

Bronchi

15

Contents of bronchi

PSCC w/goblet cells
Seromucus glands in lamina propria
Smooth muscle bands
Irregular hyaline cartilagenous plates

16

What marks the transition from conducting to respiratory portion?

Bronchioles

17

Contents of bronchioles (3)

Simple cuboidal epithelium
Alveoli
Some goblet cells

18

What cells make up alveolus

Type I cells
Type II cells
MQ

19

Type I cells

Simple squamous
Thin cytoplasm
Help with air-blood barrier

20

Type II cells

Simple cuboidal
Release surfactant
Stabilizes alveoli from collapsing
Can undergo mitosis to replenish Type I and II cells

21

Give cells of PSCC (5)

Ciliated columnar cell
Basal cell
Goblet cell
Brush cell
Granule

22

What's the most abundant type of cell of PSCC

Ciliated columnar

23

What are the replacement cells of PSCC

Basal

24

What are sensory receptor type cells of PSCC

Brush cells

25

What are the small granule cells of PSCC a part of?

Diffuse neuorendocrine system (DNES)

26

As you go down the nasal cavity, what are the trends?

More cells are present
Epithelium appears thicker
Goblet cells are absent
(you're in olfactory epithelium)

27

What type of glands are Bowman's? Where are they found

Serous

Only found in olfactory region of terrestrial vertebrates

28

What are collections of olfactory axons in lamina propria

Axon fasicle

29

Thins squamous epithelium that covers 90% of SA and allows gas exchange with capillaries

Type I cells

30

Simple cuboidal cells and make surfactant and can make Type I cells

Type II cells

31

What are the source of MQ

Alveolar interstitium

32

Where does gas exchange occur

Blood-air barrier
AKA capillary endothelium

33

Purpose of surfctant and importance in fetal development

Reduces surface tension by limiting attractive forces of water molecule. Important to fetal lung prior to birth to prevent alveolar collapse.