Hypophysis Flashcards
Adenohypophysis
the frontal, glandular portion of the hypophysis (anterior pituitary) that produces trophormones
gonandotropins or gonandotrophins
hormones that regulate reproductive functions and production of sexual hormones
Hypophysiotropic area
parvocellular region of hypothalamus that regulates the function of the adenohypophysis; releasing and inhibiting factors (hormones) are produced here
inhibiting hormones and factors
hormones produced parvocellular (small cell) region of the hypothalamus (hypophysiotropic area) that facilitate adenohypophysis functions
releasing hormones and factors
hormones or hormone-like compounds produced by 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 pituary gland (hypophysis) that stores hormones secreted by hypothalamic neurons (a neurohemal organ)
trop hormones
pitiuary (adenohypophysis) hormones that stimulate production and release of other hormones form other glands (e.g. ACTH)
portal circulation
capillaries in one organ are collected into larger vessels (veins), enter the other organ through a narrow centre (port) and form a second capillary bed to release substances carried from the first organ (e.g. gastrointestinal tract - liver or hypothalamus - hypophysis)