Final Answer:
The dura mater is the outermost layer of the meninges and is a tough, fibrous membrane that provides strong physical protection for the spinal cord. It is durable and serves as a protective barrier, helping to shield the delicate neural tissues within the spinal canal. A. Dura mater
Step-by-step explanation:
The meninges are three layers of protective membranes that surround the brain and spinal cord. Among these layers, the dura mater is the outermost and toughest layer. Composed of dense, fibrous connective tissue, the dura mater acts as a robust shield, providing substantial physical protection for the spinal cord. Its durability helps prevent damage from external forces, reducing the risk of injury to the delicate neural tissues within the spinal canal.
The arachnoid mater and pia mater, the inner layers of the meninges, offer additional support and cushioning. While the arachnoid mater is positioned between the dura mater and pia mater, the latter is closely adhered to the spinal cord's surface. The dura mater's strength makes it a key contributor to safeguarding the spinal cord against potential trauma or injury. So correct option is A.