The Growth Hormone-Releasing Hormone and Growth Hormone-Inhibiting Hormone

The Growth Hormone-Releasing Hormone and Growth Hormone-Inhibiting Hormone

  • Submitted By: anatomyhelp
  • Date Submitted: 06/03/2009 1:07 PM
  • Category: Science
  • Words: 1070
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Hypothalamus

Hormones Secreted

a.Growth Hormone-Releasing Hormone (GHRH) and Growth Hormone-Inhibiting Hormone (GHIH)
Target Tissue: The GHRH and the GHIH are being sent to the anterior pituitary glands.
Action: The GHRH stimulates the release of Growth Hormone (GH) and GHIH is going to inhibit the release of GH.
b.Thyrotropin-Releasing Hormone (TRH)
Target Tissue: The TRH is sent to the anterior pituitary glands.
Action: The TRH is sent to the anterior pituitary glands which then releases the Thyroid-Stimulating Hormones (TSH).
c.Corticotropin-Releasing Hormone (CRH)
Target Tissue: CRH is released and sent to the anterior pituitary glands.
Action: After the CRH has reached the anterior pituitary glands, the anterior pituitary glands will then release Adrenocorticotropic Hormone (ACTH).
d.Gonadotropin-Releasing Hormone (GnRH)
Target Tissue: Once GnRH is released it will go to the anterior pituitary glands.
Action: When GnRH is released into the anterior pituitary glands, the anterior pituitary glands will in turn release Follicle-Stimulating Hormone (FSH) and Luteinizing Hormone (LH), which is collectively referred to as Gonadotropins.
e.Prolactin-Inhibiting Hormone (PIH) and Prolactin-Releasing Hormone (PRH)
Target Tissue: Once PIH and PRH are released, they will go to the anterior pituitary glands.
Action: PIH prevents Prolactin (PRL) secretion, while PRH stimulates the release of PRL.

Pituitary

Hormones Secreted by the Anterior Lobe

a.Growth Hormone (GH)
Target Tissue: While GH stimulates most body cells to increase in size and divide, its major targets are the bones and skeletal muscle. Liver, Muscle, Bone, Cartilage and other tissues.
Action:GH stimulates the epiphyseal plate growth in long bones, while in skeletal muscles GH promotes increased muscle mass. Stimulates somatic growth, mobilizes fats, and spares glucose.
b.Thyroid-Stimulating Hormone (TSH)
Target Tissue: Receiving TSH is the thyroid glands.
Action: Once TSH...

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