Question

gnrh is secreted by the
a pineal gland
b thyroid gland
c posterior pituitary
d hypothalamus

Explanation:

GnRH (Gonadotropin - Releasing Hormone) is a hormone that plays a crucial role in the regulation of the reproductive system. The hypothalamus is responsible for secreting GnRH. The pineal gland secretes melatonin, the thyroid gland secretes thyroid hormones like T3 and T4, and the posterior pituitary stores and releases hormones like oxytocin and ADH, not GnRH.

Answer:

D. Hypothalamus