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Adrenal cortex



Adrenal cortex
Layers of cortex.
Latin cortex glandulae suprarenalis
Gray's subject #277 1278
Precursor mesoderm[1]
Dorlands/Elsevier c_57/12261690

  Situated along the perimeter of the adrenal gland, the adrenal cortex mediates the stress response through the production of mineralocorticoids and glucocorticoids, including aldosterone and cortisol respectively. It is also a secondary site of androgen synthesis.

Additional recommended knowledge

Contents

Layers

The cortex can be divided into three distinct layers of tissue based on their organization.

Layer Name Primary product
Most superficial cortical layer zona glomerulosa mineralocorticoids (eg, aldosterone)
Middle cortical layer zona fasciculata glucocorticoids (eg, cortisol)
Deepest cortical layer zona reticularis weak androgens (eg, dehydroepiandrosterone)

Steps of hormone synthesis

  • All adrenocortical hormones are synthesised from cholesterol.

The steps up to this point occur in many steroid-producing tissues. Subsequent steps, however, only occur in the adrenal cortex:

Production

The adrenal cortex produces a number of different corticosteroid hormones:

Mnemonics

The layers of the cortex can be remembered with the mnemonic GFR: G - glomerulosa, F - fasciculata, R - reticularis.

Another mnemonic that is used is Go Find Rex, Make Good Sex: G - glomerulosa, F - fasciculata, R - reticularis, M - mineralcorticoids, G - glucocorticoids, S - sex hormones. (This mnemonic simplifies the relationship between the locations of production of glucocorticoids and sex hormones.)

Another mnemonic is "Salt, Sugar, Sex: The deeper you go, the sweeter it gets." As one moves layers into the adrenal cortex, compounds that control salt (mineralcorticoids), sugar (glucocorticoids), and sex (weak androgens) are produced.

Pathology

See also

References

  1. ^ Embryology of the adrenal gland. Retrieved on 2007-12-11.
 
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Adrenal_cortex". A list of authors is available in Wikipedia.
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