Hypophysis (PITUITARY GLAND)

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Hypophysis lies anteriorly to the....

Mamillary body

Hypopyhsis lies posteriorly to the....

Optic chiasma

Arteries of hypophysis...

Superior & inferior hypophyseal arteries (branches of internal carotid artery)

Hypophysis has 2 lobes. Post. lobe...

connected to hypothalamus through hypothalamo-hypophyseal tract, stores hormones secreted by hypothalamic nuclei

Superior hypophyseal supplies ...

-infundibulum & forms a capillary network (hypophyseal portal system). -anterior lobe of pituitary gland

Hypophyseal veins drain into....

Ant. and Post. Cavernous Sinuses

İnferiorly to the hypophysis...

Sphenoidal air sinuses

Neurosecretory cells situated mainly ........ of the hypothalamus

in the medial zone

Hypophysis has 2 lobes. Ant. lobe....

it is the True gland, Secretes hormones

Hypophysis lies in the...

middle cranial fossa

Inferior hypophyseal supplies ....

posterior lobe of pituitary gland.

The portal system carries the releasing hormones and the release-inhibiting hormones to the

secretory cells of the anterior lobe of the hypophysis.

Hypophysis is well protected by which .......(as bayrakları as)

sella turcica

Laterally to the hypophysis...

Cavernous sinuses

A fold of dura matter which covers the hypophysis and has an opening for passage of infundibulum

Diaphragma sellae

Superiorly to the hypophysis...

Diaphragma sellae

Ant. lobe of hypophysis' embryonic origin...

Ectodermal(stomadeum)

Post. lobe of hypophysis' embryonic origin...

Endodermal

Which pathways enable the hypothalamus to influence the activities of the endocrine glands.

(1) long and short portal blood vessels that connect sinusoids in the median eminence and infundibulum with capillary plexuses in the anterior lobe of the hypophysis (2) nerve fibers that travel from the supraoptic and paraventricular nuclei to the posterior lobe of the hypophysis


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