Block 4 - Thyroid Gland Flashcards
secretory cells in thyroid gland are organized into blank
follicles
synthesis of hormone in thyroid is initiated blank the cell and completed blank the cell
inside, outside
secretion of thyroid is stored in follicles blank the cell as a blank rather than in blank
outside, prohormone, secretion granules
parathyroid is formed from these gill arches
3,4
two very distinguishable parts of parathyroid
oxyphil cell, lipids
oxyphil cells have a blank function
unknown
parathyroid also has blank cells that respond to decreased calcium in the blood
chief
follicle cells look like this in 3 dimensions
golf balls
clear cell in thyroid that makes calcitonin (C cell)
parafollicular cells
calcitonin is released when blood calcium is blank
high
thyroid blank calcium while parathyroid blanks calcium
decreases, increases
parafollicular cells are in thyroid or parathyroid?
thyroid
things between follicles
collagen, blood vessels, lymphatics
colloid is made up of blank
prohormone
more colloid looks more blank
basophilic
areas of terminal bar
zonula occludens (tight junction), zonula adherens, macula adherens (desmosome)
terminal bar prevents blank of colloid and blank the cells
leakage, holds together
phagosome retrieves prohormone from the blank and brings it to blank
colloid, inside of the cell
phagosome releases blank and blank
T3, T4
phagosome doesnt release these and brings them back in
T1, T2
thyroid is a blank organ
endocrine