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)
zones of adrenal cortex
Zona glomerulosa
zona fasciculata
zona reticularis
contained in thyroid follicles
thyroglobulin
