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Adrenal Gland Medulla

Learn about the adrenal gland medulla, hormones it produces (adrenaline and noradrenaline), effects on the body, and its role in homeostasis. Discover feedback mechanisms, overproduction risks, and ways to manage adrenal problems effectively.

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Adrenal Gland Medulla

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  1. Adrenal Gland Medulla Sheyla Ortega Tori Oetting SumraBaksh

  2. Where are These Glands Located? • On top of the kidneys.

  3. Hormones Produced • Which hormones: • adrenaline (also called epinephrine) and • noradrenaline (also called norepinephrine) • These hormones are released directly into the bloodstream.

  4. Affect on Human Body • Nerves supplied by sympathetic nervous system. • Produces flight or fight response. • Increase blood pressure • Rise in blood sugar • Increased metabolic rate • Bronchi dilate • Pupils dilate • Hair stands on end ("gooseflesh" in humans)

  5. Why Important to Homeostasis • Not essential to life • Helps a person cope with physical and emotional stress

  6. Feedback Mechanisms • The medulla is regulated by nerve impulses from the hypothalamus. • Regulated by ANS • Positive Feedback from the Pituitary gland

  7. Antagonistic Hormones/Glands • E/NE (epinephrine and norepinephrine) will positively feedback to the pituitary • Increase the breakdown of POMCs into ACTH

  8. Overproduction and Overproduction of Hormones • UNDERPRODUCTION: If these steroids are not produced sufficiently and we got into an accident, we would never come out of shock and would die. • OVERPRODUCTION: Usually caused by tumors adrenal medulla that are also associated with dangerous levels of hypertension.

  9. How to Fix Adrenal problems • Surgery is usually the process to fix tumor problem. • Remove the tumor and all or part of the adrenal gland. • Adrenal replacement therapy.

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