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Pituitary gland

Pituitary gland. Period 1 HAP Ryan Mason, Jennifer Stern & Sachie Kakehi. Function Of Endocrine System. Function: A group of glands that secrete various hormones that produce/regulate/stimulate growth/development and reproduction

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Pituitary gland

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  1. Pituitary gland Period 1 HAP Ryan Mason, Jennifer Stern & SachieKakehi

  2. Function Of Endocrine System • Function: A group of glands that secrete various hormones that produce/regulate/stimulate growth/development and reproduction • Importance: Without it—no development or changes in bodies and normal body functions disrupted

  3. Anterior Pituitary Posterior Pituitary

  4. Location

  5. Location

  6. Location In Relation to Important Glands

  7. Function • Nickname: Master Gland • Hormones influence: growth, sexual development, skin pigmentation, thyroid function, and adrenocortical function • Directs organs and endocrine glands to suppress or induce hormone production • Production of hormones that act on other endocrine glands, the muscles, and the kidneys • Storage of hormones produced by the hypothalamus

  8. Function“Master Gland”

  9. Hormones the Gland in responsible For • Thyroid Stimulating Hormone (TSH) • Oxytocin • Vasopressin • Numerous Sex Hormones • The Pituitary gland is also responsible for producing hormones that aid in growth, maturation, and sex characteristics

  10. Thyroid stimulating hormone • Stimulates the thyroid to produce thyroxin, by binding to the G-protein-coupled receptors on the surface of the thyroid cells

  11. Vasopressin • Collects in the kidneys to stimulate reabsorption of water into the blood. Acts to reduce the volume of urine formed • “antidiuretic hormone” (ADH)

  12. Oxytocin • Acts on some smooth muscle • Stimulates the contractions of the uterus at birth • Stimulates the release of milk in mothers • Enhances bonding of males and females, mother and newborn, increases trust

  13. Diseases -Acromegaly • Hormonal disorder that develops when pituitary gland produces too much growth hormone during adulthood • Causes • Growth Hormone produces too much Insulin-like growth factor-I • Symptoms • Bone increases size, Coarse oily thickened skin, Headaches, impaired vision, fatigue and muscle weakness • Treatment • Surgery, medication, radiation (reduce GH levels)

  14. Diseases –Pituitary Tumor • Tumors in your pituitary gland that can higher or lower the production of hormones • Causes • Unknown • Symptoms • Headaches, vision loss, nausea & vomiting, weakness, less frequent/ no menstrual periods, body hair loss, sexual dysfunction, increased urination, unintended weight loss/ gain • Treatment • Various options surgery

  15. Interesting Facts!Did you know??? • The pituitary gland is about the size of a pea • Richard Kiel who played in one of the James Bond movies had Acromegaly • Once acromegaly is treated with surgery, your feet, hand and face may shrink a little but your body will not go back to the regular size

  16. Citations • Human Hormone. N.p., 19 Apr. 2012. Web. 10 Mar. 2013. <http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/H/HormoneTable.html>. • Mayo Clinic Staff. "Acromegaly." Mayo Clinic. N.p., 5 Feb. 2013. Web. 10 Mar. 2013. <http://www.mayoclinic.com/health/acromegaly/DS00478>. • - - -. "Pituitary Tumors." Mayo Clinic. N.p., 14 Nov. 2012. Web. 10 Mar. 2013. <http://www.mayoclinic.com/health/pituitary-tumors/DS00533/DSECTION=causes>. • "Pituitary Functions & Hormones." UCLA. N.p., n.d. Web. 10 Mar. 2013. <http://neurosurgery.ucla.edu/body.cfm?id=432>. • The Pituitary Gland. N.p., n.d. Web. 10 Mar. 2013. <http://thepituitaryglandcasestudy.weebly.com/interesting-facts.html>. • Shmaefsky, Brian R. Applied Anatomy & Physiology A Case Study Approach. N.p.: Paradigm, 2007. Print.

  17. Citations Pictures • http://www.aahs.org/aamcmag/homepage.php?id=29 • http://heroeswiki.com/User:Vampirate68/Metal_Mouth • http://endocrinesurgery.ucla.edu/patient_education_adm_tst_tsh_test.html • http://www.emedicinehealth.com/thyroid_problems/article_em.htm • http://www.cvphysiology.com/Blood%20Pressure/BP016.htm • http://animalsciences.missouri.edu/reprod/notes/endocrin/oxytocin.htm • http://obgyn.uams.edu/?id=6377&sid=19 • http://faculty.stcc.edu/AandP/AP/AP2pages/Units14to17/endocrine/hypothal.htm • http://www.trinity.edu/lespey/biol3449/lectures/lect7/lect7.htm • http://www.centerforhealthandhealing.org/what-are-hormones/index.htm

  18. Concept Checks • Which two portions are the pituitary gland split in? • Anterior and posterior • Medial and Lateral • Up and Down • Which hormone reduces the volume of urine formed? • Thyroid Stimulating hormone • Oxytocin • Vasopressin • Which disease produces too much growth hormone during adulthood? • Acromegaly • Hypopituaritism • Pituitary Tumor • Why is the Pituitary Gland called the Master Gland? It is because the pituitary gland produces many numerous hormones which control most of the other endocrine glands.

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