Hypothalamus
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Hypothalamus. Clark Mannas and Harrison Cardwell 4B. Overview. The hypothalamus is located in the brain It is central, under the thalamus Some of the main functions involve body temperature control and the linking of the nervous system to the endocrine system with the pituitary gland.

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Hypothalamus

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Hypothalamus

Hypothalamus

Clark Mannas and

Harrison Cardwell

4B


Hypothalamus

Overview

  • The hypothalamus is located in the brain

  • It is central, under the thalamus

  • Some of the main functions involve body temperature control and the linking of the nervous system to the endocrine system with the pituitary gland.

  • The hypothalamus has many distinct nuclei

  • It is highly connected with other parts of the brain and nervous system


Hypothalamus

Hormone Production

  • Gonadotropin (releasing hormone – GnRH) Controls follicle stimulating hormone (FSH) and luteinizing hormone (LH), stimulates testes and ovaries

  • Thyrotropin (releasing hormone – TRH) Promotes thryoid stimulating hormone (TSH) and prolactin (PRL) secretion

  • Corticotropin (releasing hormone – CRH) Promotes growth hormone (GH) secretion

  • SomatostatinInhibits GH and TSH secretion

  • Antidiuretic Hormone (ADH) Prevents dehydration through reduced urine volume and subsequent greater water retention

  • Oxytocin (OT) Responsible for feelings of lust and love, is especially prevalent in sexual intercourse


Regulation

Regulation

  • The Hypothalamic-Pituitary Axis is unique in its self-regulation; the hormones of one (for instance, cortisol, an inhibitor for the hypothalamus) will bind to the other, stoppping further production

  • This perfect, symbiotic relationship is referred to as negative feedback inhibition


Hypothalamic disease

Hypothalamic disease

  • Hypothalamic disease can be caused by eating disorders or malnutrition, as well as genetic disorders or trauma

  • This can interfere with hormone production as well as the maintenance of homeostasis

  • The vast area of effect yields symptoms ranging from vision loss to tumors to impotence

  • As far as treatment, the tumors can be dealt with through surgery or radiation, where the hormone deficiencies can be handled with a replacement of those that are lacking


Sources

Sources

  • http://quizlet.com/5823150/eight-hormones-produced-in-the-hypothalamus-flash-cards/

  • http://www.psychologytoday.com/basics/oxytocin

  • http://www.nlm.nih.gov/medlineplus/ency/article/001202.htm

  • http://courses.washington.edu/conj/bess/feedback/newfeedback.html


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