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Q: Why do hormones exist?
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What is the function of the secretory system?

The secretory system does not really exist. There is a secretory mechanism that is part of the endocrine system, and that secretes hormones into the blood stream.


What chemicals are release by endocrine?

It is called Hormones


What are topic hormones?

These hormones stimulate the secretion of other hormones. Many hormones of hypothalamus are topic hormones.


What are hormones made from cholesterol called?

Steroid Hormones


Why portal system exist?

It helps to connect the hypothalamus with the anterior pituitary. Its main purpose is to transport and transfer hormones to allow a quick communication between both glands.


The chemical secretions of the endocrine glands are called?

i think is hormones


Blood in your hormones?

Hormones are transported by blood.So there are hormones in blood.


What is the chemical messenger of the nervous system?

There are three kinds of chemical messengers in the nervous system: Neurotransmitters, endorphins and hormones. 1) Neurotransmitters are released by transmitting neurons. They alter the activity of the receiving neurons. Note that neurotransmitters exist outside of the nervous system as well. Some neurotransmitters are: Serotonin, dopamine, acetylcholine, gamma-aminobutyric acid (GABA), norepinephrine (also a hormone) and glutamate. 2) Endorphins help in pain reduction, pleasure and even memory. 2) Hormones are affects the functioning of organs and are released by glands. Some hormones include: Melatonin, oxytocin, adrenal hormones (cortisol, epinephrine, norepinephrine) and sex hormones (androgens, estrogens and progesterone).


What are the hormones for arthritis?

There are no hormones for arthritis.


What is the difference between adrenal hormones and thyroid hormones?

Adrenal hormones come from you adrenal glands and thyroid hormones come from your thyroids.


Which IUD doesn't have hormones?

In the US, the Paragard IUD has no hormones. Mirena and Skyla have hormones.


What do all hormones have in common?

All hormones are blood-borne.All hormones are "chemical messengers."