23 : Peter Sterling, Part 1
Circle of Willis
00:00
Evolution of the super-kiasmatic nucleus and its role in regulating metabolism
The first bilateral organisms had paired sense organs located in the front of the body, which was efficient for movement. The initial brain of these organisms contained a clock, which gave rise to the super-kiasmatic nucleus in mammals. This nucleus plays a crucial role in regulating metabolism, coordinating the body's activities during sleep and wake cycles. During sleep, the metabolism focuses on body repair and maintenance, whereas during wakefulness, energy mobilization takes precedence.
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