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foramen spinosum
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foramen spinosum

anatomy
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Quick Summary

The foramen spinosum is an opening in the skull located in the base of the sphenoid bone. It is one of the three fossae within the skull and is significant for the passage of the middle meningeal artery, which supplies blood to the dura mater, a protective covering of the brain.1

The foramen magnum, on the other hand, is a much larger opening at the base of the skull, within the occipital bone. It serves as the crucial connection between the brain and the spinal cord, allowing for the passage of the spinal cord, vertebral arteries, and certain cranial nerves. Its position is vital for posture and bipedal locomotion.2

Summary created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.
2 Britannica Sources
  1. foramen magnum
  2. human skeleton - Interior of the cranium

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