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identify and describe the three spinal meninges?

identify and describe the three spinal meninges?

Science   Anatomy-And-Physiology   
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Answer #1

Meninges are the covering of brain and spinal cord. They play a very important role in maintaining central nervous system There are basically three layers of meninges:

1. Duramater: it is the outermost covering, tough in nature. It is thick and dense made up up irregular connective tissue

2. Arachnoid: It is located beneath the duramater. It is delicate and fibrocellular in nature. It is derived  from the neural crest of mesoectoderm in the embryo.

3. Piamater: it is firmly adheres to brain and spinal cord. It is made up of thin fibrous tissue. Piamater is permeable to water and solutes . It nourishes brain by allowing blood vessels to pass through it.

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