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What is an organ?

Updated: 11/4/2022
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6y ago

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In biology

The human body and animal bodies are very organized. Specialized groups of cells form tissues, tissues form organs, and organs form body systems.

An organ is a specialized group of tissues that performs a particular function, and often more than one function. Examples of organs are the brain, heart, eyes, bones, intestines, pancreas, rectum, lymph nodes, ears, stomach, liver, and gallbladder. We have close to seventy-eight organs in our body.

Organs may work together to form a body system. This is the case with the major organs of the digestive system (mouth, esophagus, stomach, small & large intestines, rectum, anus) along with its accessory organs (salivary glands, liver, pancreas, gallbladder).

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In music

In music, an organ is a very large piano-based instrument. They date back to Ctesibius of Alexandria, who lived between 285 BC and 222 BC. Today they are commonly found in catholic churches.

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Related Links

Organ in Biology: en.wikipedia.org/wiki/Organ_(anatomy)

Organ in music: en.wikipedia.org/wiki/Organ_(music)

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