histology- respiratory system

pseudostratified columnar with cilia or simple columnar-cuboidal,

goblet cells

describe respiratory epithelium

transitional to pseudostratified columnar

what is the epithelium of the nasal vestibule?

no

does the nasal vestibule epithelium have cilia?

goblet cells

what are these?

simple columnar, with goblet cells and cilia

what type of epithelium is this?

dense CT (for extra protection), defense cells, serous glands, vessels

what is the lamina propria of the nasal vestibule like?

hyaline

what type of cartilage does the nasal vestibule have?

yes, serous glands

does the nasal vestibule have glands?

nasal vestibule

what is this?

transitional/pseudostratified columnar epithelium

what is 1?

hyaline cartilage

what is 2?

nasal cavity

where are turbinate bones found?

bipolar neurons, microvilli on columnar cells

what special structures does the respiratory epithelium of the olfactory region have?

cavities covered by respiratory epithelium

what are paranasal sinuses?

respiratory epithelium, nonkeratinized stratified squamous epithelium

the nasopharynx/soft palate consists of what?

olfactory region

where in the respiratory system would you find bipolar neurons?

nasopharynx and epiglottis

where in the respiratory system would you find nonkeratinized stratified squamous epithelium?

cartilage covered by mucosa

the larynx is composed of..

hyaline- thyroid and cricoid

elastic- epiglottis and arytenoids

what type of cartilage makes up the larynx?

elastic

what type of cartilage composes the epiglottis?

elastic

what cartilage composes the arytenoids?

nonkeratinized stratified squamous epithelium

what is the epithelium of the epiglottis like?

respiratory epithelium

most of the larynx (- the epiglottis) has what type of epithelium?

defense cells and mucous glands

what do you find in the lamina propria of the larynx?

hyaline cartilage

what is this?

thyroid and cricoid cartilages

in what parts of the larynx would you find this?

respiratory epithelium (with goblet cells, basal cells, and columnar ciliated epithelium)

what type of epithelium is in the trachea?

yes

can you find cilia in the trachea?

yes

can you find goblet cells in the tracea?

trachea

which organ has no barrier between the lamina propria of the mucosa and the submucosa?

loose CT, tracheal (seromucous) glands, lymphoid tissue, nerve ganglia

describe the contents of the lamina propria/submucosa of the trachea

C-shaped, gap filled by smooth muscle

describe the cartilage of the trachea

trachea

what organ is this?

lumen

what is 1?

hyaline cartilage

what is 2?

smooth muscle

what is 3?

epithelium and lamina propria/submucosa

what is 4?

lamina propria and submucosa

what is 1?

respiratory epithelium

what is 2?

hyaline cartilage

what is 3?

the trachea has C-shaped cartilage rings, and the bronchus has incomplete cartilage plates (less cartilage)

how can you differentiate the trachea from the bronchus?

it begins to disappear

as you go deeper into the respiratory system, approaching the lungs, what happens to the cartilage?

more elastic fibers

what is special about the mucosa of bronchi?

bronchus- random hyaline cartilage plates, respiratory epithelium with goblet cells

what is this? why?

yes

do bronchi have goblet cells?

bronchus: no blood in lumen, columnar epithelium, cartilage

vessel: usually blood in lumen, squamous epithelium

how can you distinguish bronchus from a vessel?

no

do the bronchioles have goblet cells?

bronchus- hyaline plates, respiratory (columnar) epithelium

blood in lumen is abnormal

what is this? why?

no

do bronchioles have glands?

no

do bronchioles have cartilage?

yes, a lot

do bronchioles have muscle?

yes, but it is scarce

do bronchioles have lamina propria?

cuboidal to columnar

what is the epithelium of a bronchiole?

bronchus- cartilage, goblet cells

bronchiole- no cartilage, no glands, thin walls

how can you distinguish a bronchus and a bronchiole?

bronchus- hyaline plates, respiratory (columnar) epithelium

what is this? why?

bronchus- hyaline plates, respiratory epithelium

what is this? why?

bronchioles- no cartilage or glands, right next to vessel

what are the 2 circles?

bronchiole- no cartilage or glands, but muscle and columnar epithelium

what is 1? why?

artery- simple squamous epithelium

what is 2? why?

bronchiole- cuboidal epithelium, no cartilage, no cilia, no glands

what is this? why?

bronchiole- cuboidal epithelium, no cartilage, no cilia, no glands

what is this? why?

groups of alveoli

what are alveolar sacs?

cuboidal epithelium, smooth muscle in openings

what is the composition of alveolar ducts?

neumocytes

what special cells are in alveoli?

connective tissue and blood vessels

what is in the interalveolar space?

alveoli

what are all of these?

in the epithelium of alveoli

where do you find neumocytes?

fibroelastic connective tissue and mesothelium

what is the visceral pleura of the lungs composed of?

no

does the pleural cavity have fluid?