1 / 20

Endocrine System

Endocrine System. Hormone producing glands that helps maintain homeostasis. Hormones circulate through the body in the blood. Hormones are: chemicals produced by endocrine glands Able to control body parts. Hormones are specific: Only target cells have the right receptors

atricia
Télécharger la présentation

Endocrine System

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  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

More Related