Systemic Circulation

Real World Example

Imagine trying to distribute holiday cards to your friends and family scattered across different cities, except for those living in your own neighborhood. This is similar to systemic circulation, where blood is delivered from the heart to every part of the body except the lungs. In this analogy, the holiday cards represent oxygen-rich blood, your home is the heart, and the various cities are the body's organs and tissues, while skipping your neighborhood mirrors excluding the lungs in this circulatory route.