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Recommended video: Directional terms and body planes [10:35]
Locating structures in your body is one of the main components of anatomy. Learn all terms used to describe location in the human body.

Internal is a directional term that means inside or closer to the centre of an organ or cavity.

The opposite of internal is external which means outside of or farther from the centre of an organ or cavity.

For example, the organs of the abdominal cavity are internal to the muscles of the abdominal wall and vice versa.

Terminology English: Internal
Latin: Internus
Examples External ear, internal ear, external iliac artery, internal iliac artery

Learn all the anatomical terms and planes with the following study unit.

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