110514 resp histology

Question 1

where does the lungs start?

Answer 1

after primary bronchus

Question 2

conducting portion of respiratory system

Answer 2

from nose/mouth all the way to terminal bronchiole

in contrast the respiratory portion, it doesn’t have alveoli

Question 3

conducting passages of respiratory system

Answer 3

lined by mucosa
wall stabilized by bone, cartilage, or muscle
produce seromucous secretions

Question 4

mucosa

Answer 4

lining membrane of cavities (lumens of tubular organs) that have a connection to the exterior of the body

Question 5

components of a mucosa

Answer 5

epithelium

lamina propria

Question 6

nasal cavity histology

Answer 6

epithelium-ciliated pseudostratified columnar with goblet cells

lamina propria-seromucous glands, venous plexus

Question 7

respiratory epithelium

Answer 7

columnar cells
goblet cells
basal cells
small granule cells
brush cells

Question 8

olfactory epithelium is located where

Answer 8

above superior concha

Question 9

olfactory epithelium histology

Answer 9

olfactory cells
supporting cells
basal cells
brush cells

Question 10

nasopharynx has what on histology

Answer 10

lymphocytes

Question 11

larynx histology

Answer 11

cartilagnious respiratory epithelium

Question 12

true vocal cord is lined by

Answer 12

stratified squamous epithelium

Question 13

trachea histology

Answer 13

several cartilaginous rings
respiratory epithelium

in layers:
mucosa
submucosa with serous mucous glands

Question 14

bronchi histology

Answer 14

little plates of cartilage

sm muscle

Question 15

bronchioles histology

Answer 15

no cartilage anymore
primarily sm musc
Clara cells

Question 16

what are some ex of parts with stratified squamous epithelium

Answer 16

oropharynx
mucosa of nasal vestibule
vocal folds
respriatory passage of smokers

Question 17

fxn of clara cells

Answer 17

make surfactant

Question 18

pulmonary lobule

Answer 18

a terminal bronchiole and the lung tissue it supplies

Question 19

pulmonary acnius

Answer 19

portion of lung supplied by a respiratory bronchiole

Question 20

you have smooth muscle from trachea up to where?

Answer 20

alveolar duct

Question 21

you have cartilage up until where?

Answer 21

bronchi

Question 22

what components are there in surfactant?

Answer 22

phospholipid (phosphotidylcholine, phosphotidylglycerol)
proteins
antioxidants

Question 23

what is in the alveolar wall?

Answer 23

collagen fibrils and elastin

fibroblasts and macrophages

Question 24

clinical conditions affecting respiratory passages

Answer 24

interstitial fibrosis
infections
acute respiratory distress syndrome
emphysema
lung cancer

Question 25

most of conducting passageways are lined with what epithelium

Answer 25

ciliated pseudostratified columnar epithelium with goblet cells = respiratory epithelium

Question 26

where is smooth muscle abundant?

Answer 26

bronchioles

Question 27

in terminal bronchioles, goblet cells are replaced by?

Answer 27

multifunctional clara cells