Noradrenalin (also known
as norepinephrine) is a hormone secreted by the Adrenal
Medulla (an endocrine gland in the human
body).
|
|
The effects of the hormone "noradrenalin" are similar
to the effects of adrenalin - the other hormone secreted by the
adrenal medulla.
The actions of noradrenalin include : |
|
Constriction
of small blood vessels leading to increase in blood pressure.
|
|
Increased
blood flow through the coronary arteries and slowing of heart
rate.
|
|
Increase
in rate and depth of breathing.
|
|
Relaxation
of the smooth muscle in the intestinal walls.
|
Increased amounts of both adrenalin and noradrenalin are secreted when
the body is under stress. For further general/summary information (excellent for revision !) visit
the page about
Endocrine
Glands of the Human Body. |
|
|
