Foramen magnum facts for kids
The foramen magnum is a really important hole at the bottom of your skull. It's like a big opening that connects your brain to your spinal cord. Think of it as the main doorway for your nervous system!
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What is the Foramen Magnum?
The foramen magnum is the biggest opening in the skulls of primates. This group includes humans, monkeys, and apes. It's found in the occipital bone, which is at the back and base of your skull.
Where is it Located?
The exact spot of the foramen magnum can be different depending on the animal.
- In humans, it's right at the bottom of the skull.
- In monkeys, it's more towards the back of the skull.
- In apes, it's somewhere in between.
Why is its Position Important?
The position of the foramen magnum is connected to how an animal moves.
- Humans walk on two legs. This is called bipedal movement. Our foramen magnum is underneath the skull, helping our head balance on top of our spine.
- Monkeys usually walk on four legs. This is called quadrupedal movement. Their foramen magnum is further back, which helps balance their head when they are on all fours.
- Apes, like gorillas, often move by knuckle-walking. Their foramen magnum is also in a position that helps them balance their head for their unique way of moving.
Images for kids
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Skull seen from below. The hole through which the medulla (shown in red) is passing is foramen magnum.
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Opisthion shown in red
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Occipital bone inner surface (basion shown in red)
See also
In Spanish: Foramen magno para niños
