What is a human organ?

A human organ is a collection of tissues that performs a specific function or group of functions within the body. Organs are made up of different types of cells and tissues that work together to perform complex tasks. Examples of organs include the heart, lungs, liver, kidneys, and brain. Each organ has a unique structure and function that is essential for maintaining overall health and well-being. Organs are organized into various organ systems, such as the digestive system, respiratory system, and circulatory system, which work together to maintain homeostasis and perform various bodily functions. Understanding the structure and function of different organs is a key aspect of studying human anatomy and physiology.