Login

Join for Free!
118819 members


melatonin

For discussing the functions of different structures of all organisms.

Moderator: BioTeam

melatonin

Postby kk » Sat Apr 14, 2012 6:18 am

I know that melatonin hormone is released by the pineal gland upon the fall of the night, so we can go to sleep easier. But nowhere I could find how the daily release of this hormone is triggered in humans that live on the north pole or so, so the sun wouldn't go down for 6 months and then it would be dark for another six months. It assumes the existence of other stimulatory mechanisms for the daily melatonin release...
kk
Death Adder
Death Adder
 
Posts: 63
Joined: Fri Sep 23, 2005 7:58 pm

Postby nikolebellamy » Sat Apr 28, 2012 7:45 pm

but at the same time us organisms will adapt to our surrounding enviroment.......your body will get on a set schedule......just as if you began to work a graveyard shift you have to learn to sleep through the daylight....your body will make what adjustments are needed to reach a homeostasis level
nikolebellamy
Garter
Garter
 
Posts: 1
Joined: Sat Apr 28, 2012 7:28 pm

Postby JackBean » Mon May 07, 2012 9:20 am

Isn't light only correcting the circadial rhythm?
http://www.biolib.cz/en/main/

Cis or trans? That's what matters.
User avatar
JackBean
Inland Taipan
Inland Taipan
 
Posts: 5689
Joined: Mon Sep 14, 2009 7:12 pm



Return to Physiology

Who is online

Users browsing this forum: No registered users and 1 guest