Horloge biologique
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<timefyi-glossary slug="biological-clock"></timefyi-glossary>Définition
Le mécanisme moléculaire interne des organismes vivants qui génère des oscillations rythmiques correspondant approximativement au cycle de 24 heures. Chez les mammifères, l'horloge maîtresse réside dans le noyau suprachiasmatique (NSC) de l'hypothalamus.