The three layers of protective membranes that surround the brain and spinal cord are called the **dura mater**, **arachnoid mater**, and **pia mater**.

1. **Dura Mater**: This is the outermost layer, which is tough and resilient. It provides the first line of defense against injury and infection.

2. **Arachnoid Mater**: The middle layer is web-like in appearance. It is named for its spider-web-like structure and serves as a protective barrier and a space for cerebrospinal fluid.

3. **Pia Mater**: This is the innermost layer that is delicate and closely adheres to the surface of the brain and spinal cord. It contains blood vessels that supply the central nervous system.

These three layers collectively protect the central nervous system, providing both physical and chemical protection, and play essential roles in the homeostasis of the brain and spinal cord.

Question

The three layers of protective membranes that surround the brain and spinal cord are called the **dura mater**, **arachnoid mater**, and **pia mater**.

1. **Dura Mater**: This is the outermost layer, which is tough and resilient. It provides the first line of defense against injury and infection.

2. **Arachnoid Mater**: The middle layer is web-like in appearance. It is named for its spider-web-like structure and serves as a protective barrier and a space for cerebrospinal fluid.

3. **Pia Mater**: This is the innermost layer that is delicate and closely adheres to the surface of the brain and spinal cord. It contains blood vessels that supply the central nervous system.

These three layers collectively protect the central nervous system, providing both physical and chemical protection, and play essential roles in the homeostasis of the brain and spinal cord.

Knowee AI · Accepted Answer

The three layers of protective membranes that surround the brain and spinal cord are called the **dura mater**, **arachnoid mater**, and **pia mater**.

1. **Dura Mater**: This is the outermost layer, which is tough and resilient. It provides the first line of defense against injury and infection.

2. **Arachnoid Mater**: The middle layer is web-like in appearance. It is named for its spider-web-like structure and serves as a protective barrier and a space for cerebrospinal fluid.

3. **Pia Mater**: This is the innermost layer that is delicate and closely adheres to the surface of the brain and spinal cord. It contains blood vessels that supply the central nervous system.

These three layers collectively protect the central nervous system, providing both physical and chemical protection, and play essential roles in the homeostasis of the brain and spinal cord.

The three layers of protective membranes that surround the brain and spinal cord are called the mater, the mater, and the mater.

Question

The three layers of protective membranes that surround the brain and spinal cord are called the mater, the mater, and the mater.

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