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Foramen

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Definition

noun, plural: foramina, foramens

Any opening or perforation, orifice or fenestra, especially through a bone, and may serve as a passage for muscles, nerves, blood vessels, or other structures


Supplement

Foramen is an anatomical term that refers to any opening in the body of animals, including humans. It is an opening especially through a bone, and serves as a passage to muscles, nerves, blood vessels or other structures that connect with another body part. A relatively large opening though is foramen magnum. It is an opening in the occipital bone in the cranium and serves as an outlet of the spinal cord and medulla to enter from the skull to the vertebral column. Another foramen is the foramen ovale, which is a hole between the venous and arterial sides of the heart of the fetus.


Word origin: Latin forāmen (“aperture, opening”)

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