median eminence


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me·di·an em·i·nence

[TA]
the slightly prominent lower segment of the infundibulum of the hypothalamus, immediately proximal to the hypophysial stalk; the region is characterized by the capillary tufts of the infundibular arteries, from which the hypothalamohypophysial portal system of veins arises.
Synonym(s): eminentia mediana

median eminence

The anterior bodies of the medulla oblongata separated by the anterior median fissure.
See also: eminence
References in periodicals archive ?
Gaillard, "Changes in the hypothalamo-corticotrope axis after bilateral adrenalectomy: evidence for a median eminence site of glucocorticoid action," Neuroendocrinology, vol.
When Blackshaw and his colleagues killed off new neurons in the high-fat eaters by irradiating just their median eminences with precise X-ray beams, the mice gained significantly less weight and fat than animals who had been fed the same diet and were considerably more active, suggesting that these new neurons play a critical role in regulating weight, fat storage and energy expenditure.
The newborn cells' parents turn out to be a kind of brain cell that resides in the median eminence. Both mice and people have these ceils, called tanycytes.
The ventral portion of the hypothalamus forms a mound (median eminence) that is continuous with the infundibulum (stalk), which connects with and supports the pituitary gland.
20); the anterior margin of the carapace is weakly, evenly concave and lacking median eminence (Fig.