what is the definition of a human organ
Organ (anatomy) Organs are collections of tissues with a similar function. Plant and animal life relies on many organs that coexist in organ systems.[2]
Liver The liver, an organ only found in vertebrates, detoxifies various metabolites, synthesizes proteins, and produces biochemicals necessary for digestion.[2][3][4] In humans, it is located in the upper right quadrant of the abdomen, below the diaphragm. It also plays a role in metabolism, regulation of glycogen storage, decomposition of red blood cells and hormone production.[4]