What are the thin fibers that send messages between the brain and different parts of the body? a. nerves b. veins c. arteries d. muscles

A. nerves

Explanation:

Nerves are one of the components of our peripheral nervous system. They can be defined as bundles of thin nerve fibers surrounded by connective tissue, each fiber being formed by the axon and the sheaths surrounding it. The function of the nerves is to ensure communication between the central nervous system and the effector and sensitivity organs.

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