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Endocrine System

Delve into the intricate world of the endocrine system, uncovering hormone production, regulation, and their impact on maintaining internal balance. Understand the role of different types of hormones, glands, and the fascinating mechanisms that govern our body's equilibrium.

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Endocrine System

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  1. Endocrine System Hormone producing glands that helps maintain homeostasis

  2. Hormones circulate through the body in the blood

  3. Hormones are: chemicals produced by endocrine glands Able to control body parts

  4. Hormones are specific: Only target cells have the right receptors Other body parts are unaffected

  5. 9 main glands

  6. Very little hormone is produced at a time 10-12 Mol/L

  7. Hormone production is determined by: • Internal Balance (water/salt/nutrients) • Nervous system • Other endocrine hormones

  8. Hormone impact affected by: • Amount of production & Secretion • Blood flow to the target area • ½ life of the hormone • Hormone concentration in blood

  9. ½ life of a hormone = time required for breakdown

  10. Antagonistic hormone: Hormones with opposite actions. EX. Insulin converts sugar to fat Glucagon converts fat to sugar

  11. Steroid hormone: Hormones composed of cholesterol. 4 carbon rings

  12. Non-Steroid hormone: Hormones composed of protein or polypeptides or aminoacids. 2 carbon rings

  13. Steroid hormone: • Permeable to membranes • Receptor in cytoplasm • Enters nucleus

  14. Non-Steroid hormone: • Not Permeable to membranes • Receptor in cell membrane • ATP - cAMP

  15. Non-Steroid hormones: • Adrenaline • LH • FSH • Anti-diuretic hormone • Adrenocorticotropic hormone

  16. Which type of hormone?

  17. Which is a steroid?

  18. Great web siteshttp://www.emc.maricopa.edu/faculty/farabee/BIOBK/BioBookENDOCR.htmlhttp://europa.eu.int/comm/research/endocrine/background_system_en.htmlhttp://biology.clc.uc.edu/courses/bio105/endocrin.htmhttp://training.seer.cancer.gov/module_anatomy/unit6_3_endo_glnds.html

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