Circadian rhythms
Output from SCN - Circadian rhythms
Fibres leave the SCN to reach the ventrolateral preoptic area (VLPO) of the anterior hypothalamus multisynaptically. They initially…
Pineal gland - Circadian rhythms
The pineal gland contains a circadian pacemaker in some vertebrates, such as perching birds (passerines).
In…
Melatonin - Circadian rhythms
Melatonin production The clock in the SCN, through its neurological connections, has a circadian influence not only on sleep, but…
Circadian rhythm periodicity The characteristics of this rhythm generator are largely genetically determined. At least 12 genes have been identified on…
Impulses reach the SCN from retinal receptors which lie particularly in the lower and nasal quadrant of the…
Melatonin (N-5-methoxy-N-acetyl-tryptamine) is synthesized from tryptophan after it has been converted to 5HT
Coordination of circadian rhythms
Circadian rhythms
Circadian rhythms have a periodicity of around a day, which is longer than…
SCN clock genetics - Circadian rhythms
Input to SCN - Circadian rhythms
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