The endocrine system is a systme of glands that produce hormones
These glands control many biological functions and affect many behaviours. it does this by releasing chemicals called hormones into the bloodstream.
Hormones are chemical messengers that regulate a range of processes in the body.
They travel rapidly in the bloodstream to parts of the body where they can either have a very specific influence or a general effect.
example - part of the adrenal gland called the adrenal medulla is triggered by the sympathetic division of the ANS to produce adrenaline. this contributes to physiological arousal.
Functions of some glands and hormones
Adrenal- imprortant part of fight or flight as it facilitates the releaseof adrenaline
Testes- facilitate the relase of testosterone
Ovaries- facilitate the release if oestrogen and progesterone.
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