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Question: Choose the correct answer from the alternatives given. Which of the following hormones causes the ...

Choose the correct answer from the alternatives given.
Which of the following hormones causes the secretion of LH?
A Growth hormone
B FSH
C Thymosin
D GNRH

Explanation

Solution

Hint Luteinizing hormone (LH) is a hormone produced by both men and women. This hormone is called a gonadotropin, and it affects both males and women's sex organs. The ovaries are affected in women, while the testes are affected in men. Puberty, menstruation, and fertility are all affected by LH.

Complete step by step answer:
The anterior pituitary gland secretes growth hormone (GH) in a pulsatile manner, controlled by two hypothalamic peptides: GH-releasing hormone (GHRH) increases GH synthesis and secretion, while somatostatin inhibits it. Body growth is stimulated by GH or STH. Dwarfism is caused by hyposecretion of this hormone. Gigantism will result from hypersecretion.
Follicle-stimulating hormone is a glycoprotein polypeptide hormone known as a gonadotropin. The anterior pituitary gland's gonadotropic cells synthesize and secrete FSH, which regulates the body's development, growth, pubertal maturation, and reproductive activities.
Follicle-stimulating hormone (FSH) is a glycoprotein gonadotropin secreted by the anterior pituitary in response to the hypothalamic hormone gonadotropin-releasing hormone (GnRH). Another gonadotropin produced by the pituitary gland is luteinizing hormone (LH).
The peptide hormone thymosin is released by the thymus gland. Thymosin is a thymus hormone that encourages the formation of disease-fighting T lymphocytes.
GnRH, or gonadotropin-releasing hormone, is a hormone that causes the anterior pituitary to release follicle stimulating hormone (FSH) and luteinizing hormone (LH).

GnRH, which is option D, is the correct answer.

Note: GnRH is a neurohormone, which means it's a hormone made in a specific brain cell and released at its neural terminal. The preoptic area of the hypothalamus, which houses the majority of GnRH-secreting neurons, is a critical location for GnRH production.