Gibney Lung Histology Flashcards Preview

CP2.02_Histology > Gibney Lung Histology > Flashcards

Flashcards in Gibney Lung Histology Deck (56):
1

Cell composition of Respiratory Epithelium:

  • Pseudostratified:
    • 30% goblet cells
    • 30% ciliated cells
    • 30% basal cells
    • 3-5% DNES cells
    • Bowman’s glands found in lamina propria.
       

2

Label all + type of tissue:

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lung

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3

Does the olfactory epithelium contain goblet cells?

No.

4

What is this an image of?

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respiratory bronchiole

arrow = outpocketting

5

Label all + type of tissue:

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respiratory epithelium

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6

What glands are found in the lamina propria of respiratory epithelium?

Bowman’s glands

7

What is this an image of?

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  • Ventricular fold of larynx:
    • Pseudostratified epithelium
    • Core of connective tissue
       

8

Label all + tissue type:

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larynx

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9

Label all + type of tissue:

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Respiratory Epithelium

Pseudostratified with cilia and goblet cells
 

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10

What is this an image of?

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  • a terminal bronchiole (black) becoming a Respiratory bronchiole (purple)
     

11

How can you tell when muscular bronchioles transition to respiratory brochioles?

  • Respiratory bronchioles begin when outpockettings occurs.

12

Key features of muscular bronchioles in comparison to bronchi:

  • No cartilage
  • Smooth muscle walls 
  • Clara cells appear
  • Goblet cells disappear

13

Process of emphysema:

  1. smoking causes macrophage level increase.
  2. macrophages secrete chemoattractants and proteases to recruit neutrophils.
  3. neutrophils release elastase.
  4. elastic fibers in the alveolar walls broken down.
  5. smoking α1-antitrypsin level decrease. 
  6. elastase levels from neutrophils increase.
  7. elastic fibers in alveolar wall degraded faster than replaced.  

14

Label all + type of tissue:

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bronchus

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15

Label:

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clara cell

16

Respiratory Portion of respiratory system function and structures:

  • gas exchange
  • respiratory Bronchioles
  • alveolar ducts and sacs
  • alveoli

17

Structure of Sustentacular cells in olfactory epithelium:

  • support cells
  • numerous microvilli 

18

What is the black arrow pointing to?

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alveolar dust cell

(phagocytic macrophage)

19

Composition of respiratory epithelium:

  • Simple cuboidal epithelium except where thin outpockettings are found (simple squamous epithelium). 
     

20

Label all:

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21

Label all:

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22

What is this an image of?

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cilia in respiratory epithelium

23

What is this an image of?

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  • Vocal fold of larynx: 
    • Stratified squamous epithelium
    • Core of skeletal muscle (Vocalis muscle)
       

24

Label all + type of tissue:

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trachea

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25

Label all:

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26

What is this an image of?

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  • Aveolar Ducts (AD) to 
  • Aveolar Sacs (AS) to
  • Aveoli (A)
     

27

Location and function of Type I Pneumocytes:

  • Lines alveoli
  • Involved in gas exchange
  • Covers approx 90% of surface area

28

Structure of Olfactory receptor cells in olfactory epithelium:

  • bipolar cells
  • long, thin, non-motile cilia

29

Label all:

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blood-air barrier

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30

Function of Bowman’s glands found in lamina propria of olfactory epithelium:

  • Secretes a watery, proteinaceous secretion which serves as a solvent for oderferous substances.

31

What is this an image of?

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cilia in respiratory epithelium

32

Location and function of Type II Pneumocytes:
 

  • lines alveoli
  • Secretes surfactant
  • Can divide

33

Label all + type of tissue:

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olfactory epithelium

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34

Conducting portion of respiratory system function and structures:

conducts and warms air to lungs

  1. Nose and Nasal Cavity
  2. Nasopharynx and pharynx
  3. Larynx
  4. Trachea
  5. Bronchi
  6. Muscular Bronchioles, located in lungs

35

Label all + type of tissue:

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olfactory epithelium

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36

What tissue is this an image of?

Q image thumb

Respiratory Epithelium

Pseudostratified with cilia and goblet cells
 

37

Label all + type of tissue:

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muscular bronchiole

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38

Two major divisions of the respiratory system:

  1. conducting portion
  2. respiratory portion

39

Components of Blood-Air Barrier (3):

  1. Type 1 Pneumocytes
  2. Shared basement membrane
  3. Endothelium of capillary

40

Aveoli are lined by:

  • Type I Pneumocytes
  • Type II Pneumocytes

41

Label all + type of tissue:

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wall of trachea

not surrounded by lung tissue

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42

What type of epithelium is this?

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olfactory

thick; no goblet cells

43

What are the blue arrows pointing to?

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pulmonary interstitium in the lung

44

What is this an image of?

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blood-air barrier

  • red = type I pneumocyte
  • blue = shared basement membrane
  • black = endothelial cell of capillary

45

Key features of olfactory epithelium:

  • Receptor cells (olfactory neuron)
  • Sustentacular cells
  • Basal cells                
  • NO GOBLET CELLS        
     

46

What type of tissue is this?

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trachea

NOT SURROUNDED BY LUNG TISSUE

47

Label all:

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48

What type of epithelium is this?

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respiratory

goblet cells present

49

What is this an image of?

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frontal portion of larynx

50

What is this an image of?

Q image thumb

Type II Pneumocyte


Multilamellar vesicles contain Surfactant 
 

51

Function of clara cells:

  • Located in muscular bronchioles
    • Secrete surfactant-like substance to reduce surface tension.
    • Stem cell
       

52

Label all + type of tissue:

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53

Cells in Olfactory Epithelium:

  • Pseudostratified
    • Olfactory receptor cells (bipolar cells)
    • Sustentacular cells (support cells)
    • Basal cells (stem cells)
    • DNES cells
    • Bowman's glands in lamina propria

54

Epithelium composition of muscular bronchioles:

  • low columnar to cuboidal
  • CT contains elastic fibers

55

Label all + tissue type:

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Muscular Bronchiole

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56

What is this an image of?

Q image thumb

goblet cell in respiratory epithelium