review q's Flashcards
what is the only elastic artery we know of
-what are all the other arterys we must see then
- aorta
- muscular artery
Order the following organs from highest to
lowest mucous cell percentage:
Submandibular Gland
Pancreas
Sublingual Gland
Parotid Gland
sublingual
submandibular
parotid/pancreas (pure serous, NO mucous)
priamry cell type of bronchiole
club cell
what are arteries in the lungs called
pulmonary artery
what is the epithelium of trachea? of bronchiole?
trACHEA=pseudostratified
bronchiole= club cells
which has less cartilage? trachea or bronchiole?
bronchiole
-trachea has C shaped rings of cartilage
which has more elastic fibers? trachea or bronchiole?
bronchiole - to allow for expansion and contraction of airways
why does smooth muscle layer, elastic fibers, and club cells increase as you go from trachea to bronchiole
As cartilage decreases, we increase our
smooth muscle layer to support our airways.
Elastic fibers increase to allow expansion and
contraction of the the airways. Our traditional
pseudostratified epithelium slowly disappears
in favor of club cells until we reach our
terminal bronchioles, which is composed
solely of club cells. Once we reach
respiratory bronchioles, we are club cell
epithelium with pockets of alveolar
epithelium.
what are intercalated discs responsible for regulating in the filtrate
for regulating acid/base in the filtrate.
what are the 2 types of intercalated discs and what do they secrete
Type A, which
secretes H+ into the lumen in response to
acidosis and has microvilli, and Type B,
which secretes HCO3- into the lumen in
response to alkylosis and has no microvilli.
significant of appendix histology
lymphatic nodules (deep blue) scattered in submucosa
jejunum characteristics
villi
nothing specific
