The skull protects the brain from most physical injuries. The brain is also protected by three layers of tissue called meninges, which are wrapped around it. The inner layer acts as a barrier to prevent bacteria reaching the brain. The middle layer contains cerebrospinal fluid. This supplies the brain with food and oxygen and acts as a shock absorber, cushioning the brain against damage. The outer layer lines the cranium. The skull itself consists of several bones which are fused together.
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ABHISHEK GUPTA
The skull protects the brain from most physical injuries. The brain is also protected by three layers of tissue called meninges, which are wrapped around it. The inner layer acts as a barrier to prevent bacteria reaching the brain. The middle layer contains cerebrospinal fluid. This supplies the brain with food and oxygen and acts as a shock absorber, cushioning the brain against damage. The outer layer lines the cranium. The skull itself consists of several bones which are fused together.