- Located in the upper thorax posterior to the sternum
- Large in infants/children but decreases through adulthood
- By old age its mostly composed of fibrous connective tissue and fat
- Thymus produces thymosin hormones and other that are essential for normal development of a special group of white blood cells and immune response.
Gonads
Female and male produce sex hormones that are identical to the adrenal cortex cells but are different in their source and relative amounts produced.
Hormones of the Ovaries
Ovaries are paired, almond sized organs located in the pelvic cavity. They are stimulated to release estrogens and progesterones in a cyclic way by anterior pituitary gonadotropic hormones.
Female and male produce sex hormones that are identical to the adrenal cortex cells but are different in their source and relative amounts produced.
Hormones of the Ovaries
Ovaries are paired, almond sized organs located in the pelvic cavity. They are stimulated to release estrogens and progesterones in a cyclic way by anterior pituitary gonadotropic hormones.
Estrogens
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Progesterone
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Hormones of the Testes”
- Are suspended into a sac, scrotum, outside the pelvic cavity
- Sex cells: sperm
- Produce male sex hormones: androgens of which testosterone is important!
Testosterone Hormone
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