Healthcare and Medicine
The medical world can be a confusing place. Patients and their families might feel overwhelmed by the large vocabularies and complicated explanations they get from their health care providers. Students entering health care also struggle to grasp the complexity of health sciences, and are forced to memorize huge amounts of information. We hope to make understanding the medical world a bit easier. Look around! These videos do not provide medical advice and are for informational purposes only. The videos are not intended to be a substitute for professional medical advice, diagnosis or treatment. Always seek the advice of a qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read or seen in any Khan Academy video.


  1. MCAT Video Competition MCAT Video Competition
  2. The Heart The Heart
  3. The Lungs The Lungs
  4. Influenza Influenza
  5. Blood Blood
  6. Blood Vessel Diseases Blood Vessel Diseases
  7. Fetal Circulation Fetal Circulation
  8. Arterial Stiffness Arterial Stiffness
  9. Healthy Lifestyle Healthy Lifestyle
  10. Endocrinology and Diabetes Endocrinology and Diabetes
  11. Health Care System Health Care System
  12. Colon Disease Colon Disease
  13. Cervical Spine Cervical Spine
  14. Hypertension Hypertension
  15. Lab Values and Concentrations Lab Values and Concentrations
  16. Heart Disease and Stroke Heart Disease and Stroke
  17. Heart Muscle Contraction Heart Muscle Contraction
  18. Heart Depolarization Heart Depolarization
  19. Nerve Regulation of the Heart Nerve Regulation of the Heart
  20. Pressure Volume Loops Pressure Volume Loops
  21. Changing the PV Loop Changing the PV Loop
  22. Preload and Afterload Preload and Afterload
  23. Miscellaneous Miscellaneous