Respiratory tract histology and defence L6

Question 1

2 types of epithelia in the nose

Answer 1

pseudo-stratified

Olfactory

Question 2

totipotent stem cells can divid into

Answer 2

entire organism

Question 3

pluripotent can divide into

Answer 3

all tissue types

Question 4

multipotent can divide into

Answer 4

a group of cell types

Question 5

3 cells of pseudo-stratified epithelium

Answer 5

ciliated epithelial cells
goblet cells
basal cells

Question 6

function of goblet cells

Answer 6

mucus secretory

Question 7

function of basal cells

Answer 7

stem cells

Question 8

where is the epithelium columnar

Answer 8

nasal cavities
trachea
bronchi

Question 9

olfactory epithelia has

Answer 9

specialised olfactory cells

Question 10

most alveoli are

Answer 10

type 1 pneumocytes (squamous)

Question 11

adaptations of type 1 alveoli

Answer 11

flattened cytoplasm

fused basal lamina

Question 12

what do type 2 pneumocyte do

Answer 12

secrete surfactant decreasing surface tension

Question 13

what keeps the airways open

Answer 13

lamina propria

Question 14

what type of epithelia in alveoli

Answer 14

squamous epithelia

Question 15

name 4 defence mechanisms in the respiratory tract

Answer 15

cough and sneeze
muco-ciliary escalator
lysozyme
humidification/warming/filtration

Question 16

3 immune defences of the respiratory tract

Answer 16

alveolar macrophages
lymphoid tissues and antibodies (IgA)
inflammatory responce