Hypophysis Flashcards

1
Q

Adenohypophysis

A

the frontal, glandular portion of the hypophysis (anterior pituitary) that produces trophormones

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2
Q

gonandotropins or gonandotrophins

A

hormones that regulate reproductive functions and production of sexual hormones

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3
Q

Hypophysiotropic area

A

parvocellular region of hypothalamus that regulates the function of the adenohypophysis; releasing and inhibiting factors (hormones) are produced here

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4
Q

inhibiting hormones and factors

A

hormones produced parvocellular (small cell) region of the hypothalamus (hypophysiotropic area) that facilitate adenohypophysis functions

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5
Q

releasing hormones and factors

A

hormones or hormone-like compounds produced by parvocellular region of the hypothalamus (hypophysiotropic area) that facilitate adenohypophysis (anterior pituitary) hormone production and release

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6
Q

neurohemal-organ

A

organs of neuronal origin in that store hormones (usually secreted by other neurons e.g. neurohypophysis)

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7
Q

neurohypophysis

A

posterior lobe of the pituary gland (hypophysis) that stores hormones secreted by hypothalamic neurons (a neurohemal organ)

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8
Q

trop hormones

A

pitiuary (adenohypophysis) hormones that stimulate production and release of other hormones form other glands (e.g. ACTH)

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9
Q

portal circulation

A

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)

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