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Secretion of which hormone is not pituit...

Secretion of which hormone is not pituitary dependent

A

Triiodothyronine

B

Testosterone

C

Glucocorticoids

D

Parathyroid hormone.

Text Solution

AI Generated Solution

The correct Answer is:
To determine which hormone is not pituitary dependent, we can analyze the options provided: 1. **Triiodothyronine (T3)**: - This hormone is secreted by the thyroid gland. - Its secretion is regulated by the pituitary gland through the release of Thyroid Stimulating Hormone (TSH). - Therefore, it is pituitary dependent. 2. **Testosterone**: - Testosterone is produced by the Leydig cells in the testes (in males) and in smaller amounts by the ovaries (in females) and adrenal glands. - Its secretion is regulated by the pituitary gland through the release of Luteinizing Hormone (LH), which is also known as Interstitial Cell Stimulating Hormone (ICSH). - Thus, testosterone is also pituitary dependent. 3. **Glucocorticoids**: - These hormones are produced by the adrenal cortex. - Their secretion is regulated by the pituitary gland through the release of Adrenocorticotropic Hormone (ACTH). - Hence, glucocorticoids are pituitary dependent. 4. **Parathyroid Hormone (PTH)**: - This hormone is secreted by the parathyroid glands. - Its secretion is primarily regulated by the levels of calcium in the blood and is not influenced by the pituitary gland. - Therefore, parathyroid hormone is not pituitary dependent. **Conclusion**: The hormone that is not pituitary dependent is **Parathyroid Hormone (PTH)**. ---
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