Hormone regulating diurnal rhythm/sleep wake cycle is

Thymosin

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Glucagon

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Melatonin

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Oxytocin

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C Melatonin
Melatonin is secreted from pineal gland which is located on dorsal side of forebrain. Its secretion is stimulated by MSH (Melanocyte stimulating hormone) secreted from intermediate lobe of pituitary gland. Melatonin regulates circadian rhythm of the body like sleep-wake cycle because melatonin levels rise at night and fall in the morning. High levels of melatonin induce sleep. It also regulates pigmentation, metabolism and defence capability.
So, the correct answer is 'Melatonin'.

Suggest Corrections