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Pituitary Gland (Posterior Lobe)

Pituitary Gland (Posterior Lobe). Kevin Spohrer , Michelle Chambers January 8, 2014 Period: 7th . Location:. In the brain Attached to the hypothalamus by the infundibulum . Hormones:. Antidiuretic ( ADH ) Oxytocin. Affect of Hormones:.

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Pituitary Gland (Posterior Lobe)

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  1. Pituitary Gland (Posterior Lobe) Kevin Spohrer, Michelle Chambers January 8, 2014 Period: 7th

  2. Location: • In the brain • Attached to the hypothalamus by the infundibulum

  3. Hormones: • Antidiuretic (ADH) • Oxytocin

  4. Affect of Hormones: • Antidiuretic: Controls the intake of water into the blood, especially in the kidneysto conserve body water by reducing the loss of water through urine • Oxytocin: acts on the smooth muscle • Stimulates contractions during childbirth • Stimulates the release of milk in the mammary glands • Aids in sperm release

  5. Maintaining Homeostasis: • ADH keeps the blood pressure at a consistent rate which keeps your heart rate within normal condition which in turn supplies blood to the brain keeping all autonomic nervous systems functional

  6. Feedback Mechanisms & Antagonist Hormones: • The hypothalamus senses changes in the body through the peripheral nervous system. Send a signal the pituitary making it release it’s hormones ADH or oxytocin • Neither of the hormones have a specific antagonist hormone

  7. Releasing Hormones & Glands • The hypothalamus makes and releases inhibiting hormones for the posterior pituitary gland

  8. If the Pituitary Gland doesn’t function properly: • Hyposecretion of ADH can lead to diabetes insipidus which is a condition that causes the patient to produce abnormally large amounts of urine • Recent studies have revealed that ADH may affect with learning and memory; scientist are looking into the possibilities of administering ADH to reverse memory loss associated with senility

  9. Correcting the Gland: • ADH can be injected under the skin or directly into the muscle through a man made hormone known as vasopressin

  10. Works Cited: • http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/P/Pituitary.html • http://humupd.oxfordjournals.org/content/12/4/437.full • http://www.drugs.com/mtm/vasopressin.html • Our Anatomy and Physiology Book

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