Lecture 18 11-08-10

Lecture 18 11-08-10 - Lecture 18 Lecture Pituitary Gland...

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Lecture 18 Lecture 18 Pituitary Gland Pituitary Gland Stress Response Stress Response Control of Movement Control of Movement 8 November 2010 8 November 2010
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Vertebrate CNS Hypothalamus and Posterior Pituitary
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Vertebrate Pituitary Gland
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Vertebrate Pituitary Gland Anterior Pituitary Posterior Pituitary
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Vertebrate Pituitary Gland Posterior pituitary secretes oxytocin and antidiuretic hormone (ADH). Oxytocin and ADH are produced in the paraventricular and supraoptic nuclei
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Vertebrate Pituitary Gland Secretory activity of the anterior pituitary is controlled by hypothalamic releasing hormones (or releasing factors) and release- inhibiting hormones . Hormones of the anterior pituitary are peptides or glycoproteins . Some (GH, PRL, MSH) influence non-endocrine tissues. Others (TSH, ACTH, GnRH), called tropins , influence endocrine glands.
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Vertebrate Pituitary Gland
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Vertebrate Pituitary Gland TRH (TSH releasing hormone*) CRH (corticotropin releasing hormone) GHRH (growth hormone releasing hormone) and GHIH * TSHRH is the same as TRH
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Vertebrate Pituitary Gland PRH (prolactin releasing hormone) and dopamine (PIH) GnRH (gonadotropin releasing hormone)
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Long-loop negative feedback Short-loop negative feedback Hypothalamo-Pituitary-Adrenal (HPA) Axis
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