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Nervous System (Cranial Nerves (I. Olfactory nerve, II. Optic nerve, III.…
Nervous System
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Layers of meninges (3)
Pia Mater
The pia mater, the innermost membrane covering the central nervous system, protects delicate nerve tissue, supplies blood to the brain, and produces and circulates spinal fluid.
Dura Mater
the tough outer layer of the meninges that surrounds the central nervous system and is pierced by the cranial nerves
Arachnoid Mater
directly contacts and covers the brain and spinal cord like plastic wrap. The space between the arachnoid and pia maters is filled with cerebrospinal fluid
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Tissues
Nervous tissue
Nervous tissue, also called neural tissue or nerve tissue, is the main tissue component of the nervous system.
Action Potential
generate nervous impulses, nervous impulses are the electrical signals by which neurons talk to one another and also to other cells of the body.