Histology

Question 1

role of goblet cells

Answer 1

• secrete granules of mucinogen droplets onto epithelial surface to trap inhaled particles

Question 2

how would you know you were in the adventitia

Answer 2

• you would see a lot of hyaline cartilage

Question 3

how would you know you were in the submucosa

Answer 3

• see glands and vessels

Question 4

composition of mucosa layer

Answer 4

• epithlium and lamina propria

Question 5

epithelium in the trachea

Answer 5

• psuedostratified ciliated columnar

Question 6

does the trachea have ciliated cells

Answer 6

yes

Question 7

does the trachea have goblet cells

Answer 7

• yes

Question 8

if you see cartilage, what kind of structure is it

Answer 8

• bronchus

Question 9

if you don’t see cartilage, what kind of structure is it

Answer 9

• bronchiole

Question 10

epithelial of bronchi

Answer 10

• pseudostratified ciliated epithelium

Question 11

do bronchi have goblet cells?

Answer 11

• yes

Question 12

does the trachea have smooth muscle?

Answer 12

• yes, the trachaelis muscle

Question 13

how can you tell where a bronchus transitions to a primary bronchiole

Answer 13

• look for the point where there is no cartilage

Question 14

what is this

how do you know?

Answer 14

respiratory bronchiole

tract of noncilated club cells and gas exchange epithelium

Question 15

what is this?

Answer 15

• true bronchiole

Question 16

what is this?

Answer 16

• terminal bronchiole

Question 17

epithelium in terminal bronchiole

Answer 17

• simple cilated columnar changing to simple cuboidal

Question 18

role of Clara cells

Answer 18

• divide, secrete GAGs, metabolize airborne toxins

Question 19

what is this

Answer 19

respiratory bronchiole

Question 20

epithelium of respiratory bronchiole

Answer 20

• simple cuboidal

Question 21

nucleus of type I pneumocyte

Answer 21

• cigar-shaped

Question 22

how can you tell the type II pneumocytes

Answer 22

• look for bubbly surfactant
• look where 3 alveoli come together

Question 23

how can you tell a capillary

Answer 23

• look for an open hole with a blood cell in it
• nucleus pushed off to one side

Question 24

what are the cell located at the basement membrane or near the lamina propria

Answer 24

• basal/short cells

Question 25

Answer 25

smooth muscle

Question 26

Answer 26

both of these

serous glands secrete enzymes

mucous glands secrete mucous

Question 27

Answer 27

pseudostratified

Question 28

Answer 28

they are goblet cells

they secrete mucinogen droplets

Question 29

Answer 29

microtubules

Question 30

Answer 30

both of these

in psuedostratified epithelium, all ciliated columnar cells, goblet cells, brush cells, basal cells rest on the basement membrane

Question 31

Answer 31

conduction of air

Question 32

Answer 32

artery/vein adjacent to a bronchus

Question 33

Answer 33

secondary or tertiary bronchus

Question 34

Answer 34

clara cells

Question 35

Answer 35

1. terminal bronchiole
2. respiratory bronchiole

Question 36

Answer 36

alveolar duct

Question 37

Answer 37

2

Question 38

Answer 38

equalization of pressure between alveoli

Question 39

Answer 39

division and regeneration of pneumocytes

it is a type II pneumocyte

Question 40

Answer 40

continuous

Question 41

Answer 41

95%

Question 42

Answer 42

lamellar bodies

Question 43

Answer 43

microvilli

Question 44

Answer 44

alveolar macrophage

Question 45

which region is an alveolar duct?

Answer 45

• C

Question 46

how can you tell what an alveolar duct looks like

what is at the end of an alveolar duct

Answer 46

long passages containg knobs in histological sections

alveolar sac