14.3) Hormones in humans

14.3) Hormones in humans


Hormone: is a chemical substance, produced by a gland and carried by the blood, which alters the activity of one or more specific target


The role of adrenaline:

  • As adrenaline circulates around the body it affects a number of organs.
  • Examples of situations in which adrenaline secretion increase are stressful and dangerous situations.



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