Endocrine histology (puder)
Terms in this set (25)
what are the 2 large areas of the pituitary gland?
what does the adenyhypophysis consist of?
what does the neuropophysis consist of?
higher magnification of anterior pituitary (pars distalis)
what is diagnostic of pars intermedia?
terminal bouton axonal ends that release oxytocin or vasopresson found in the
posterior pituitary (pars nervosa)
what is characteristic of the pineal gland?
calcium deposits =
Corpora arenacea, "brain sand"
what are the 2 types of cells found in the thyroid?
what is the structure of follicular cells?
cuboidal cells arranging in a circle around
what do follicular cells produce?
T3 and T4
what do parafollicular cells produce?
what are the 2 cells found in the parathyroid gland?
Chief (principle cells)
grouped together, small and have a central spherical nucleus
produce PTH to elevate calcium serum levels
large eosinophilic cells, appear in clusters throughout to be precursors to chief cells
what is the cortex of the adrenal glands derived from?
what is the medulla of the adrenal glands derived from?
neural crest cells
what are the 3 zones of the adrenal cortex?
1) Zona glomerulosa
2) Zona fasciculata
3) Zona reticularis
consists of flattened cells arranged in loops and hairpin turns
what does the zona glomerulosa secrete?
aldosterone for electrolyte homeostasis and osmotic balance of urine
stimulated by ACTH and angiotensin II
middle region of the cortex, cells arranged in straight cords
what does the zona fasciculata secrete?
cortisol = for carbohydrate, protein, and fat metabolism
stimulated by ACTH
innermost region of adrenal cortex, cells arranged in anastomosing cords
what does the zona reticularis secrete?
cortisol and weak androgens
stimulated by ACTH
endocrine pancreas with islet of langerhans stained for beta cells
what are the 5 different cells within the endocrine pancreas?
alpha => glucagon
beta => insulin
delta => somatostatin and VIP
G => gastrin
PP => pancreatic polypeptide
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