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A skull from the genus Homo that dates from approximately 750,000 years ago is discovered. Where would the foramen magnum most likely be located? at the back of the skull at the front of the skull at the bottom of the skull at the top of the skull

Sagot :

Answer;
A skull from genus Homo that dates from approximately 750,000 years ago is discovered. Then the foraman magnum is most likely be located at the bottom of the skull.

Explanation; 
Foramen magnum is a large opening at the base of the skull through which the spinal cord exits the cranial vault. It is situated in the occipital bone, and forms around the base of the brainstem, separating the brain from the spinal cord. In apes and humans (members of genus homo) it is formed by the fusion of the four parts of the occipital. In human for example; it is anteriorly positioned, with its interior lying on the bitympanic line and is also inferiorly oriented.

Answer:

The correct answer would be the "at the bottom of the skull".

In organisms belonging to the genus Homo including humans, foramen magnum is large oval opening present at the base of the skull.

It allows the passage to the spinal cord to connect to the brain.

In addition, it allows arteries, nerves, and fluids to pass in and out of the brain. For example, cranial nerves, spinal arteries et cetera pass through the foramen magnum.

Lastly, the bottom location of foramen magnum aids in the bipedal locomotion of hominids.

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