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Sulci

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Q: What are the valleys separating the convolutions on the surface of the cerebrum?
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Depresses groove or valleys on the surface of the cerebrum?

Sulcus....


Why is the human brain squiggly?

The "squiggly" appearance of the brain refers to the sulci and gyri the comprise the cerebral cortex. The sulci are the valleys, or sunken portions, and the gyri are the raised portions. The "squiggly" convolutions of the cerebrum (brain) allow for more surface area. Thus, the contours of the brain help increase the overall volume of the brain inside its limited space, the cranium. The "squiggly" appearance of the brain refers to the sulci and gyri the comprise the cerebral cortex. The sulci are the valleys, or sunken portions, and the gyri are the raised portions. The "squiggly" convolutions of the cerebrum (brain) allow for more surface area. Thus, the contours of the brain help increase the overall volume of the brain inside its limited space, the cranium. It is also 90% water.


Sharp ridges separating glacial valleys?

Aretes


Sharp ridges separating 2 glacial valleys?

Aretes?


Does Saturn have valleys?

No, Saturn doesn't have a solid surface, so there is nowhere for the valleys to be.


Are there valleys on the surface of the moon?

yes


What is a geographic feature that starts with a?

An arête is a thin ridge of rock that is left separating the two valleys.


Are there valleys on Jupiter?

No. Jupiter does not have a solid surface.


Are rivers and valleys surface features?

Yes


How many valleys doe Saturn have?

Saturn is a gas planet. It does not have a solid surface, so it does not have valleys.


Are there any valleys on Uranus?

Uranus is a gas giant, meaning it has no solid surface, so no valleys.


What is a glacial Areté?

Sharp narrow ridge separating two glacial troughs (U-shaped valleys), or corries.