hypothalamus defined in 1951 yearhypothalamus - hypothalamus;
hypothalamus - Floor and sides of brain of vertebrates just behind attachment of cerebral hemispheres. Derived from fore-brain. In mammals known to contain centres coordinating, amongst other things, manifestations of rage and mechanism of body temperature control, both of which predominantly involve sympathetic nervous system. The pituitary lies immediately below, and is partly controlled by, the hypothalamus; anti-diuretic hormone and oxytocin are probably supplied to the posterior lobe by the hypothalamus, and the anterior lobe is much influenced by hormones, including specific releasing factors for some of the anterior pituitary hormones, secreted by the hypothalamus and carried to the anterior lobes in portal veins.
near hypothalamus in Knolik
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