Endocrine gland histo Flashcards
somatotrophs secrete ___ released by ____
somatotrophs secrete Growth hormone released by GHRH and GIH
lactotrophs secrete _____ released by ____
lactotrophs secrete prolactin releasaed by PIH
corticotrophs secrete _____ released by ____
ACTH released by CRH
thyrotrophs secrete _____ released by ____
TSH released by TRH
gonadotrophs secrete _____ released by ____
FSH and LH released by GnRH
herring body
dilatoation filled with neurosecretion adjacent to capillaries in non-myelinated axons in posterior pituitary
releasing hormones delivered to ant pituitary via
hypothalamo-hypophyseal portal system
____ surround the pituitary stalk drain the capillary plexus in the meian eminence
long portal vessel
Thyroid epithelial cells secrete:
Parafollicular / C cells secrete
Epithelial - thyroglobulin
triodothyronine (T3)
Thyroxine (T4)
Parafollicular - Calcitonin
thyroid arterial supply
subclavian
external carotid
parathyroid chief cells secrete
parathyroid hormone
large, eosinophilic parathyroid cells with small nuclei + many mitochondria
increase with age
oxyphil cell
zona glomerulosa secretions
control via ___
mineralcorticoids
(aldosterone, deoxycorticosterone)
control via Renin-angiotensin system
zona fasciculate secretions
control via
gluccocorticoids
(cortisol, coticosterone)
control via ACTH
zona reticularis secretions
adrogenic steroids
(some gluccocorticoids)
