why don’t we have fat and muscle surrounding our brains as an added protective layer over our skulls?
In: Biology
We do, only the very top of the skull doesn’t have skeletal muscle attached. There’s a specialized type of skin called scalp that covers the skull, it’s extra thick and tough for added protection. All skin has a layer of subcutaneous fat as well. Inside the skull there’s several more layers of protection called the meninges, made up of three layers; the dura mater which it tough and thick, the arachnoid mater which is spongy and the pia mater which is thin and delicate. The brain itself also floats in a tub of liquid called cerebrospinal fluid that flows between the meninges and through the brain itself via a system of ventricles and canals, supporting it and further cushioning it.
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