![]() ![]() 10–10 as you read the following.įigure 10–10. Sodium ions (Na +) are returned to the blood, and potassium ions (K +) are excreted in urine. Aldosterone increases the reabsorption of sodium and the excretion of potassium by the kid-ney tubules. The target organs of aldosterone are the kidneys, but there are important secondary effects as well. The functions of the other adrenal cortical hor-mones are well known, however, and these are consid-ered vital hormones.Īldosterone is the most abundant of the mineralo-corticoids, and we will use it as a representative of this group of hormones. They may also be important in supplying estrogen to women after menopause and to men throughout life. They may contribute to rapid body growth during early puberty. ![]() ![]() The sex hormones, “female” estrogens and “male” androgens (similar to testosterone), are produced in very small amounts, and their importance is not known with certainty. The adrenal cortex secretes three types of steroid hormones: mineralocorticoids, glucocorticoids, and sex hormones. ![]()
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