Definition
A capillary vessel is the smallest type of blood vessel in the body, forming a network that connects arteries and veins. Think of them as the tiny delivery trucks of the circulatory system, dropping off oxygen and nutrients to your cells and picking up waste. They are so small that red blood cells pass through in single file. This allows for efficient exchange of substances between blood and tissues. Without them, your cells wouldn't get the nourishment they need. They’re like the essential micro-highways in your body. A bit like the Amazon delivery service, but for cells 🚚.