Capillary

Imagine you're at a crowded party, trying to navigate through the tightly packed room to get a drink and chat with friends. Just like you maneuvering through the crowd to exchange greetings and grab refreshments, capillaries navigate through the body, facilitating the exchange of gases, nutrients, and waste products between blood and tissues. In this analogy, the capillaries are like the clear pathways at the party that allow you to move freely and interact, ensuring that vital exchanges occur seamlessly to keep everything functioning smoothly.
Practice Version

Capillary: A tiny blood vessel that allows the exchange of gases, nutrients, and waste products. Capillary. Capillaries are the smallest blood vessels in the body where oxygen and nutrients are exchanged for waste with cells.