Summary of Respiratory System, Part 2: Crash Course Anatomy & Physiology #32

00:00:00 - 00:10:00

The respiratory system is responsible for breathing air into and out of the body. This video covers the anatomy and physiology of the respiratory system. It explains how hyperventilation and hypocapnia, or a decrease in carbon dioxide levels in the blood, can lead to a breakdown in the complex process of exchanging gases inside the blood cells.

• 00:00:00 This 1-paragraph summary explains how hyperventilation and hypocapnia, or a decrease in carbon dioxide levels in the blood, can lead to a breakdown in the complex process of exchanging gases inside the blood cells.
• 00:05:00 In this video, Crash Course describes how the respiratory system works. Oxygen is delivered to active tissues, like the brain, heart, and muscles, and carbon dioxide is released to eliminate waste products. When the red blood cells arrive in the lungs, they take up oxygen and release CO2. The CO2 binds to the hemoglobin, lowering its affinity for oxygen, and the hemoglobin releases CO2 and water. Finally, the blood's pH is adjusted and the episode concludes with a reminder about the benefits of breathing into a paper bag.
• 00:10:00 The respiratory system is responsible for breathing air into and out of the body. This video covers the anatomy and physiology of the respiratory system.