- hypophysis
- SYN: pituitary gland. SEE ALSO: hypothalamus. [G. an undergrowth]- h. cerebri SYN: pituitary gland.- pharyngeal h. residual tissue derived from the hypophysial diverticulum that lies in the lamina propria of the nasopharynx; its cells and their arrangement are identical with those of the pars distalis. SYN: pars pharyngea hypophyseos.- h. sicca SYN: posterior pituitary.
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hy·poph·y·sis (hi-pofґə-sis) [hypo- + Gr. phyein to grow] [TA] pituitary gland: an epithelial body located at the base of the brain in the sella turcica, attached by a stalk to the hypothalamus, from which it receives an important neural and vascular outflow. It consists of two lobes of differing embryonic origin, the anterior lobe (adenohypophysis), which secretes most of the hormones, and the posterior lobe (neurohypophysis), which stores and releases neurohormones that it receives from the hypothalamus. Called also glandula pituitaria [TA alternative] and pituitary body. hypophysial adjHypophysis, subdivided into its two lobes, the adenohypophysis and neurohypophysis.
Medical dictionary. 2011.