The brain, spinal cord, sensory organs, and all of the nerves that link these organs to the rest of the body make up the nervous system.
Axons are cord-like collections of fibers found in the nerve's core. branches called dendrites that transport electrical impulses. A layer of connective tissue called the endoneurium surrounds axons. A layer of connective tissue termed the perineurium that encircles fascic groupings of axons
Neurons and neuroglia are the two main classifications of nervous tissue. Neuroglia serve a variety of purposes, including nourishing and safeguarding neurons, whereas neurons, or nerves, conduct electrical signals.
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