Posterior pituitary
Posterior lobe of the pituitary gland / From Wikipedia, the free encyclopedia
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The posterior pituitary (or neurohypophysis) is the posterior lobe of the pituitary gland which is part of the endocrine system. The posterior pituitary is not glandular as is the anterior pituitary. Instead, it is largely a collection of axonal projections from the hypothalamus that terminate behind the anterior pituitary, and serve as a site for the secretion of neurohypophysial hormones (oxytocin and vasopressin) directly into the blood.[2] The hypothalamic–neurohypophyseal system is composed of the hypothalamus (the paraventricular nucleus and supraoptic nucleus), posterior pituitary, and these axonal projections.[2]
Quick Facts Details, Precursor ...
Posterior pituitary | |
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Pituitary gland. Posterior pituitary is in blue and Anterior pituitary is in orange. Pars nervosa and infundibular stalk are not labeled, but pars nervosa is at bottom and infundibular stalk is at top. | |
![]() Median sagittal through the hypophysis of an adult monkey. (Posterior lobe labeled at bottom right.) | |
Details | |
Precursor | Neural tube (downward-growth of the diencephalon)[1] |
Artery | Inferior hypophyseal artery |
Vein | Hypophyseal vein |
Identifiers | |
Latin | pars nervosa glandulae pituitariae, pars nervosa hypophyseos, lobus posterior hypophyseos |
MeSH | D010904 |
NeuroNames | 401 |
NeuroLex ID | birnlex_1586 |
TA98 | A11.1.00.006 |
TA2 | 3859 |
FMA | 74636 |
Anatomical terminology |
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