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:

lung

3

Does the olfactory epithelium contain goblet cells?

No.

4

What is this an image of?

respiratory bronchiole

arrow = outpocketting

5

Label all + type of tissue:

respiratory epithelium

6

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

Bowman’s glands

7

What is this an image of?

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

8

Label all + tissue type:

larynx

9

Label all + type of tissue:

Respiratory Epithelium

Pseudostratified with cilia and goblet cells
 

10

What is this an image of?

  • 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:

bronchus

15

Label:

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?

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:

21

Label all:

22

What is this an image of?

cilia in respiratory epithelium

23

What is this an image of?

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

24

Label all + type of tissue:

trachea

25

Label all:

26

What is this an image of?

  • 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:

blood-air barrier

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?

cilia in respiratory epithelium

32

Location and function of Type II Pneumocytes:
 

  • lines alveoli
  • Secretes surfactant
  • Can divide

33

Label all + type of tissue:

olfactory epithelium

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:

olfactory epithelium

36

What tissue is this an image of?

Respiratory Epithelium

Pseudostratified with cilia and goblet cells
 

37

Label all + type of tissue:

muscular bronchiole

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:

wall of trachea

not surrounded by lung tissue

42

What type of epithelium is this?

olfactory

thick; no goblet cells

43

What are the blue arrows pointing to?

pulmonary interstitium in the lung

44

What is this an image of?

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?

trachea

NOT SURROUNDED BY LUNG TISSUE

47

Label all:

48

What type of epithelium is this?

respiratory

goblet cells present

49

What is this an image of?

frontal portion of larynx

50

What is this an image of?

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:

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:

Muscular Bronchiole

56

What is this an image of?

goblet cell in respiratory epithelium