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Flashcards in Respiratory System Deck (39):
1

What contains alveoli

*Respiratory Bronchioles 
*Alveolar Ducts 
*Alveolar Sacs

2

What is our cut off from conduction to respiration

Conduction ends with bronchioles and respiration begins at the repiratory bronchioles (where alveoli begin)

3

 Conducting passages deliver :
• Are lined by a______ 
• Have a wall stabilized by ________
• Produce______ secretions

clean, warm and moist air 

mucosa

bone, cartilage or muscle 

seromucous

4

The lining membrane of cavities (e.g., lumens of tubular 
organs) that have a connection to the exterior of the 
body is called a_____

Mucosa

(Respiratory passageways are examples of musoca)

5

3 things mucosa provides 


• An immunological & physical barrier 
• A source of secretory products 
• A selective absorptive interface

6

Consistent Components of a Mucosa Include: 
_______– at the surface 
________ – a CT layer that supports the epithelium 

Epithelium

Lamina Propria

7

Nasal Cavity:

Epithelium are:
 Lamina Propria have:
 

• ciliated pseudostratified columnar with goblet cells 

 

 • seromucous glands and venous plexus 

8

Particlesa removed from mucosa via:

how can these get damaged?

Glands and Cilia Interact to Remove Particulates from the Mucosa (mucociliary elevator)

Smoking and other irritants decrease effectiveness of this, also have Primary ciliary diskenisias

 

9

Respiratory Epithelium are made up of:
 

• Columnar Cells* 
• Goblet Cells* 
• Basal Cells* 
• Small Granule Cells 
• Brush Cells

10

How would you classify respiratory epithelium?

pseudostratified columna

11

What is included in Olfactory Epithelium?


• Olfactory Cells 
• Supporting Cells 
• Basal Cells 
• Brush Cells

12

What special cell do we see in the nasopharnyx?

lymphocytes... the adenoids are located here under free layers of epithelium

13

14

Fluid can accumulate here and can affect the voice

Reinkes space

15

True vocal cord is lined with:

stratified squamous epithelium

16

17

The lingual surface of the larnyx has ________

the Pharnygeal side of the larynx has ______

stratified squamous epithelium

 

pseudostratified ciliated epithelium

18

Which way are the cartilagenous C rings in the trachea facing?

opening is posterior and adjacent fo the esophagus

19

Describe the components seen on bronchi histology

Primary to tertiary bronchi

See respiratory epithelium: pseudostratidied columnar epithelium

underneath is Lamina Propria

under is smoot muslce with mast cells (issues d/t hitsamines)

20

What is the structure that provides support in the bronchioles?

What is the role of Clara cells?

Bronchioles have smooth muscle, no cartiledge

*Clara cells in terminal bronchioles are SECRATORY to keep alveoli from collapsing and fusing during respiration

21

What do the mucosa of nasal vestibule, oropharnyx, vocal folds and respiratory passageways of smokers have in common?

A covering of stratified squamous epithelium (get metaplasia or transition from pseudostratified-->stratified)

22

Smooth muscle is the primary support structure for the wall in which tissue?

Bronchioles

23

Chronic bronchitis, cycstic fibrosis and Bronchial carcinoma are all examples of clincal conditions affect 

Intrapulmonary conducting airways

24

As we go from conduction to respiratory system, what happens to epithelium?

Reticular fibers?

Epithelium decreases

reticular fibers increase

25

Respiratory Subdivisions:

1. A Terminal Bronchiole & the lung tissue it supplies

2. Portion of the lung supplied by a respiratory Bronchiole

Pulmonary Lobule

Pulmonary Acinus

26

Whats the difference between Type I and Type II alveolar pneumocytes?

Type I: covers majority of the surface of the alveoli but only 40% of total cell

Type II: larger cell, more numerous, lamellae body, makes surfactant and is 60% total

27

What are the contents of Surfactant secreated by Type II pneumocytes

Phospholipid 
- Phosphotidylcholine 
-Phosphotidylglycerol 
Proteins 
 Surfactant Proteins A,B,C,D 
Antioxidants

28

What part of the surfactant is active in reducing surface tension?

Phospholipids

29

The capillary endothelial cells is make of :

ACE to convert Ang I --> Ang II

There is collagen fibrils and elsastin withing the alveolar wall 

30

Where you see the capillary epithelium thin and almost fused

Blood-Air barrier of the alveolar septum, very thin

31

Macrophages inside the lungs are called:

what are they when they transition out?

What can they become during a pathologic process?

alveolar macrophages

dust cells

heart fail cells

32

ARDS, Intertitial fibrosis, emphysema and lung cancer and infections are all clinical conditions affecting the:

Respiratory passages

33

• Most conducting passageways lined with 

ciliated, pseudostratified  columnar epithelium with goblet cells = respiratory epithelium 

34

• In terminal bronchioles goblet cells replaced by 

multifunctional Clara cells

35

36

• Respiratory system is lined with a:

• Respiratory passageways contain:

mucosa 

alveoli 

37

contains capillaries and small amounts of  elastic and reticular fibers as well as fibroblasts and macrophages

• Alveolar wall or septum 

38

• Alveoli lined with thin type ___cells and larger type ___cells 
• Type____cells produce components of pulmonary surfactant 

 I 

II 

 II 

39

 Blood-air barrier consists of what 3 components?

type I epithelial cell,

BM-BM,

capillary endothelial cell