Wednesday 29 April 2015

adrenal

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Construction and location of the adrenal glands
The adrenal glands are two small organs that lie on a layer of fat on top of the kidneys. They each weigh about five grams and are grayish in color. Adrenal glands consist of two parts, the marrow (medulla) inside, and the bark (cortex) on the outside. The adrenal medulla is composed of nerve tissue. The adrenal cortex is made up of three layers, each with a different function. For the adrenal glands is surrounded by the adrenal capsule and a protective layer of fat.

The anatomy of the kidneys




Function of the adrenal glands                       
The function of the adrenal glands is to produce hormones. They make the following hormones:
Epinephrine and norepinephrine.
Cortisol.
Aldosterone.
Androgens (male sex hormones) and estrogens (female sex hormones).
This explains where these hormones in the adrenal glands are created and how they work.
Functioning of the adrenal glands
In the medulla of the adrenal glands (nor) epinephrine, and dopamine made. These hormones are known as the "fight-or-flight" hormones because they cause the body to make an extra effort to danger or stress. The heart beats faster and there is extra glucose that was stored in your body, free for extra energy. When the danger is over, the adrenaline production decreases. The body then responds normally.
In the outer layer of the adrenal cortex is produced aldosterone. Aldosterone regulates the mineral metabolism by the kidneys let out divorce less salt. This aldosterone regulates blood pressure indirectly.


The middle layer of the adrenal cortex produces cortisol, which stimulates the production and storage of glucose. Cortisol also plays a role in the defense against pathogens. And affects your sleep wake rhythm.
The inner layer produces androgens and estrogens, which play a role in the development of the sexual characteristics of men and women.

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