Adjective
suprachiasmatic (not comparable)
Situated above the optic chiasm; specifically, designating a nucleus or region in the paraventricular region of the hypothalamus. [from 20th c.]
A key component of the arousal system is the suprachiasmatic nucleus (SCN), a tiny part of the hypothalamus located directly above the point at which the optic nerves from the two eyes cross. Source: Internet
Nocturnal and diurnal animals both have increased electrical activity in the suprachiasmatic nucleus, and corresponding secretion of melatonin from the pineal gland, at night. Source: Internet
The suprachiasmatic nucleus itself shows conspicuous oscillation activity, which intensifies during subjective day (i. Source: Internet
In 1990, Swaab and Hofman citation reported that the suprachiasmatic nucleus in homosexual men was significantly larger than in heterosexual men. Source: Internet
It is mediated by a circadian oscillator in the suprachiasmatic nucleus of the brain (central clock), which causes the kidney (peripheral clock) to secrete potassium in this rhythmic circadian fashion. Source: Internet