NERVOUS SYSTEM SPECIAL SENSE
SPINALCORD
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The tough, fibrous outermost covering of the spinal cord is the:
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arachnoid
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pia mater
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dura mater
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subarachnoid
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Explanation:
Detailed explanation-1: -Three layers of membranes known as meninges protect the brain and spinal cord. The delicate inner layer is the pia mater. The middle layer is the arachnoid, a web-like structure filled with fluid that cushions the brain. The tough outer layer is called the dura mater.
Detailed explanation-2: -The spinal dura mater is attached to the circumferential base of the foramen magnum and also to the second and third cervical vertebra. It extends to the level of S3 2. Distal to this, it blends in with the periosteum to form a thin layer surrounding the filum terminale.
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