What the title says.
From what I understand brains have folds to achieve more surface area to allow more neurons but surely a smooth brain that completely filled the skull would be better because volume > surface area. So what makes surface area important? Is it just for neurons or all cells?
In: Biology
Both are important. Volume obviously has a lot to do with the total number of neurons that can be present in a brain. The surface area specifically dictates how much cortex can be present, which is broadly important for a wide range of cognitive, sensory and motor capacities, especially in larger brains.
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