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Adrenal Glands

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by

Keri Kreider

on 15 August 2016

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Transcript of Adrenal Glands

Adrenal Glands
The adrenal glands are two glands that sit on top of your kidneys that are made up of two distinct parts.

•The adrenal cortex
—the outer part of the gland—produces hormones such as cortisol, which helps regulate metabolism and helps your body respond to stress and aldosterone, which helps control blood pressure.

•The adrenal medulla
—the inner part of the gland—produces
hormones, such as adrenaline (which helps your body react to stress).

✳✱*
Adrenal Medulla
Hormones secreted by the adrenal medulla are:


Epinephrine
: Most people know epinephrine by its other name—adrenaline. This hormone increases your heart rate and rushing blood to the muscles and brain. It also spikes your blood sugar level


Norepinephrine
: Also known as noradrenaline, this hormone works with epinephrine in responding to stress. However, it can cause vasoconstriction (the narrowing of blood vessels). This results in high blood pressure.

Adrenal Cortex
Glucocorticoids released by the adrenal cortex include:


Hydrocortisone
: Commonly known as cortisol, it regulates how the body converts fats, proteins, and carbohydrates to energy. It also helps regulate blood pressure and cardiovascular function.


Corticosterone
: This hormone works with hydrocortisone to regulate immune response and suppress inflammatory reactions.

Adrenal Glands
Adrenal Gland Diseases
Cushing’s syndrome:

It is caused by overproduction of the hormone cortisol. A tumor in the adrenal gland or pituitary gland could be to blame.

Addison’s disease:


This rare disorder may affect anyone at any age. It develops when the adrenal cortex fails to produce enough cortisol and aldosterone.
"Fight or Flight"
Full transcript