5. Hypophysis Flashcards
Adenohypophysis
the frontal, glandular portion of the hypophysis (anterior pituitary) that produces trophormones
gonadotropins or gonadotrophins
hormones that regulate reproduction functions and production of sexual hormones (e.g. FSH, LH-ICSH, prolactin)
hypophysiotropic area
parvocellular region of the hypothalamus that regulates the function of the adenohypophysis; releasing and inhibiting factors (hormones) are produced here
inhibiting hormones and factors
hormones produced by the parvocellular (small cell) region of the hypothalamus that regulate adenohypophysis functions
releasing hormones and factors
hormones or hormone-like compounds produced by the parvocellular region of the hypothalamus (hypophysiotropic area) that facilitate adenohypophysis (anterior pituitary) hormone production and release
neurohemal-organ
organs of neuronal origin in that store hormones (usually secreted by other neurons (e.g. neurohypophysis)
neurohypophysis
posterior lobe of the pituitary gland (hypophysis) that stores hormones secreted by hypothalamic neurons (a neurohemical organ)
trop hormones
pituitary (adenohypophysis) hormones that stimulate production and release of other hormones from other glands (e.g. TSH, ACTH, FSH)
portal circulation
capillaries in one organ are collected into larger vessels (Veins), enter the other organ through a narrow entrance (port) and form a second capillary bed to release substances carried from the first organ (e.g. gastrointestinal tract - liver or hypothalamus - hypophysis)