USMLE

Ghrelin

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Endocrine & Hormones
  1. Leptin
  2. Ghrelin
  3. Protein Hormones
  4. Steroid Hormones
  5. Insulin
  6. Diabetes
  7. Glucagon
  8. Epinephrine
  9. Cortisol
  10. Thyroid Hormones
  11. Calcitonin
  12. Parathyroid Hormone (PTH)
  13. Anterior Pituitary
  14. Prolactin
  15. Luteinizing Hormone (LH)
  16. Follicle-Stimulating Hormone (FSH)
  17. Growth Hormone (GH)
  18. Posterior Pituitary

Summary

Ghrelin is a hormone produced by the stomach, or gastric, cells in response to an empty stomach. Ghrelin targets the hypothalamus to increase the appetite and cause a feeling of hunger.

Key Points

  • Ghrelin
    • Origin: Stomach/Gastric Cells
      • Trigger: Empty stomach
    • Target: Hypothalamus
    • Effect: Binds to receptors
      • Indicates “hunger”