Frequent question: What are the 4 protective components of the brain?

The brain is protected by the skull (cranium), cerebrospinal fluid and 3 protective membranes (Meninges).

What are the protective structures of CNS?

Protective Structures

First, the entire CNS is enclosed in bone. The brain is protected by the skull, while the spinal cord is protected by the vertebra of the spinal column. The brain and spinal cord are both covered with a protective tissue known as meninges.

What is between the skull and brain?

Between the skull and brain is the meninges, which consist of three layers of tissue that cover and protect the brain and spinal cord. From the outermost layer inward they are: the dura mater, arachnoid and pia mater. … Arachnoid: The second layer of the meninges is the arachnoid.

What is the difference between GREY and white matter?

What is the difference between grey and white matter in the brain? … The grey matter contains the cell bodies, dendrites and the axon terminals, where all synapses are. The white matter is made up of axons, which connect different parts of grey matter to each other.

What is the smallest part of the brain?

The midbrain is the smallest region of the brain, and is located most centrally within the cranial cavity.

How much space is between the skull and brain?

The capacity of an adult human cranial cavity is 1,200–1,700 cm3. The spaces between meninges and the brain are filled with a clear cerebrospinal fluid, increasing the protection of the brain.

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