In the human brain the hypothalamus is an area the size of an almond located above the pituitary gland, and acts as a master-regulator in the endocrine system. The hypothalamus acts as a link between the nervous and endocrine systems by being connected neurally to the brainstem, amygdala and septum, and synthesising hormones together with the pituitary gland to regulate many body processes (homeostasis, hunger, circadian rhythm, reproduction, defence, etc.).
Therefore, the signals given by different systems including the heart, stomach and reproductive tract, as well as other forms of stimuli e.g. blood-borne molecules, stress, steroids, olfaction, are processed via the hypothalamus and contribute to the way many hormones are secreted. The hypothalamus is split into multiple regions called nuclei that govern different functions.
Some of these hormones (secreted by the anterior pituitary specifically) include dopamine, growth-hormone-releasing hormone and gonadotropin-releasing hormone. These are involved in reward behaviour, growth and reproduction respectively.
The posterior pituitary releases oxytocin and vasopressin with roles in reproduction and kidney function.
Just a huge thank you for spending your time helping others. I love your site and I'm seriously very grateful. No word of a lie
Neuron13 The Student Room
I’ve struggled so much with feeling overwhelmed with biology revision, and I don’t know where to start. But your website is just what I need! It tells me all the information I need, and the knowledge I need to then build on, and it’s written in a way that soaks straight up into my brain!
Prettyhetty The Student Room
Hi! I have recently finished my first year doing biology at uni and I subscribed to you back when I was doing AQA A levels (glad I don’t live in Wales after watching this vid lol) and you and your website helped me so much. Just wanted to say it’s so nice to see you
Mr Peanutbutter YouTube
OMG that’s great! Actually just helped me with my homework
mabelbarc The Student Room
OFF TOPIC : I just want to say that your website is brilliant, thank you!!