Definition
Tunica simply means a layer or covering, and it's used to describe various layers of tissue in the body. Think of it as a general term for a coat or wrapping around an organ or structure. It's not specific to one location; it can refer to different layers in different organs. For example, blood vessels have tunicae (layers). It's like a generic term for any wrapping or layer. Imagine it as the different layers of an onion. 🧅