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estrogen & testosterone

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Q: Which two pituitary hormones act on the ovaries and testes?
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What controls the hormones produced by the ovaries and the testes?

Hormones from the hypothalamus and pituitary gland control the hormones produced by the ovaries and testes. The hypothalamus releases gonadotropin-releasing hormone (GnRH), which stimulates the pituitary gland to release follicle-stimulating hormone (FSH) and luteinizing hormone (LH). FSH and LH then act on the ovaries and testes to regulate hormone production.


What 2 pituitary hormones act on the ovaries and testes?

Follicle-stimulating hormone (FSH) and luteinizing hormone (LH) are the pituitary hormones that act on the ovaries in females and the testes in males. FSH stimulates egg production in females and sperm production in males, while LH triggers ovulation and testosterone production in females and males, respectively.


Which endocrine structures control the cycle of menstruation?

The hypothalamus, pituitary gland, and ovaries are the primary endocrine structures that control the cycle of menstruation. The hypothalamus releases gonadotropin-releasing hormone (GnRH), which stimulates the pituitary gland to release follicle-stimulating hormone (FSH) and luteinizing hormone (LH). These hormones then act on the ovaries to regulate the menstrual cycle.


Function of inhibin hormones in males?

In males, inhibin hormones are produced by the testes and act to regulate the production of follicle-stimulating hormone (FSH) from the pituitary gland. Inhibin helps to provide negative feedback to the pituitary gland to reduce FSH secretion, which in turn helps to regulate the production of sperm in the testes.


What two hormones stimulate production of all other sex hormones during adolescence?

The two hormones that stimulate the production of all other sex hormones during adolescence are luteinizing hormone (LH) and follicle-stimulating hormone (FSH), which are released by the pituitary gland. These hormones act on the gonads (ovaries in females and testes in males) to promote the production of estrogen and testosterone, which are responsible for the development of secondary sexual characteristics.


What do tropic hormones stimulate?

Tropic hormones stimulate the release of hormones from other endocrine glands in the body. They act as chemical messengers to regulate the function of target glands such as the thyroid, adrenal glands, and ovaries or testes.


What is hypothalamic-pituitary-teststicular?

Hypothalamic-pituitary-testicular axis is a hormone pathway responsible for regulating the production of testosterone in males. The hypothalamus secretes gonadotropin-releasing hormone (GnRH) which stimulates the pituitary gland to release luteinizing hormone (LH) and follicle-stimulating hormone (FSH). These hormones then act on the testes to produce testosterone and regulate sperm production.


Where are LH and FSH produced?

Gonadotropic hormones FSH (Follicle stimulating hormone) and LH (Luteinizing hormone) are produced and secreted by the gonadotrophs in anterior pituitary. These are the trophic hormones that act on the ovaries and testes. Required for ovulation, spermatogenesis, biosynthesis of estrogens and androgens. They are also used therapeutically to promote fertility. Their secretion is regulated by the hypothalamus GRH (gonadotropin releasing hormone), where GRH stimulates the release of FSH and LH and FSH and LH feedback and decreases levels of GRH release. Estrogens and androgens also feedback and inhibit the gonadotrophs in the pituitary and feedback on the hypothalamus.


How do the hypothalamus and the pituitary gland interact?

The hypothalamus produces releasing hormones that stimulate or inhibit the pituitary gland to release hormones into the bloodstream. The pituitary gland then controls the release of various hormones that regulate growth, reproduction, metabolism, and stress response in the body. This interaction is crucial for maintaining hormonal balance and regulating various physiological processes in the body.


How is the anterior pituitary connected to the hypothalamus?

The anterior pituitary is connected to the hypothalamus through a network of blood vessels called the hypothalamic-hypophyseal portal system. This system allows hormones produced by the hypothalamus to be transported directly to the anterior pituitary where they can regulate the release of pituitary hormones into the bloodstream.


The divisions and parts of the endocrine system?

The endocrine system is a collection of glands that secrete chemical messages called hormones. The endocrine system consists of the pancreas, thyroid, parathyroid, adrenals, pineal, pituitary and testes/ovaries.


Inhibiting hormones are produced by What gland?

Inhibiting hormones are produced by the hypothalamus, a small region of the brain located below the thalamus. These hormones act on the pituitary gland to regulate the release of various hormones in the body.