Respiratory 1

Question 1

respiratory epithelium is…

Answer 1

pseudostratified ep.

Question 2

major conducting airway in neck/thorax
single tube, not paired
elastic CT
seromucociliary clearence

Answer 2

trachea

Question 3

ciliated, pseudostratified ep. with goblet cells

Answer 3

mucosa

Question 4

(muscosa) apical motile cilia for seromucociliary clearence; before pharynx

Answer 4

columnar cells

Question 5

(muscosa) unicellular exocrine glands, secrete mucous apically, few apical microvilli

Answer 5

goblet cells

Question 6

(muscosa) secrete paracrine factors basally

some secretions regulate muscle contraction

Answer 6

small mucous granule cells

Question 7

(muscosa) L.P. loose CT + MALT; elastic lamina @ interface of muscosa and submucosa

Answer 7

basal stem cells

Question 8

dense fibroelastic CT
seromucous glands
exocrine
complex acinar

Answer 8

submucosa

Question 9

hyaline cartilage rings with smooth muscle that connects the ends of the “C” posteriorly

Answer 9

adventia

Question 10

common air and food passage, funnel shaped with muscular walls
lined by respira. ep. and some stratified squamous ep.
L.P. loose MALT aggregates

Answer 10

pharynx

Question 11

(pharynx) seromucous glands whose ducts empty onto luminal service

Answer 11

submucosa

Question 12

(pharynx) skeletal muscle

Answer 12

adventitia

Question 13

roof –> epiglottis; keeps food and fluid from entering (stratified squamous)
floor –> bilateral folds of mucosa/submucosa tract push into lumen (kertinized)
ep. = res ep. except for epiglottis/folds
L.P. large MALT aggregates

Answer 13

larynx

Question 14

(larynx) CT with some seromucous glands, free edge of each vocal fold is reinforced by very dense CT

Answer 14

submucosa

Question 15

(larynx) elastic cartilage in epiglottis

Answer 15

adventitia

Question 16

mucociliary clearence, cilia beat back towards pharynx, highly vascularized L.P., little submucosa
ep. –> respiratory except for anterior most portion near nostrils (merge with strat. sqaumous)
L.P. loose CT –>highly vascularized
mucociliary clearence due to goblet cells in res ep.

Answer 16

nasal cavity

Question 17

(nasal cavity) almost non existent

Answer 17

submucosa

Question 18

(nasal cavity) cartilage anteriorly/bone posteriorly

Answer 18

adeventitia

Question 19

modified res. ep. –> contains olfactory cells = sensory neurons; dendrites end in modified sensory cilia which are embedded in odorant-containing sustercular cells

Answer 19

olfcatory ep.

Question 20

Bowman’s serous glands; watery serous secretions trap “odorant” chemicals such that receptors on sensory dendrites are activated by them to smell

Answer 20

olfactory lamina propria