ANATOMY

Detailed explanation-1: -Believe it or not, there are over 7 trillion nerves in the human body. All these nerves are part of what’s known as your body’s nervous system. You can think of nerves as your body’s electrical wiring-they transmit signals between your brain, spinal cord, and the rest of your body.

Detailed explanation-2: -The sciatic nerve is the longest, largest nerve in your body. Your sciatic nerve roots start in your lower back and run down the back of each leg. Sciatica is the pain or discomfort if your sciatic nerve gets compressed or pinched.

Detailed explanation-3: -You have 12 cranial nerve pairs. Each nerve pair splits to serve the two sides of your brain and body. For example, you have one pair of olfactory nerves. One olfactory nerve is on the left side of your brain and one is on the right side of your brain.

Detailed explanation-4: -Axons, cord-like groups of fibers in the center of your nerve. Dendrites, branches that carry electrical impulses. Endoneurium, a layer of connective tissue surrounding axons. Perineurium, a layer of connective tissue that surrounds groups of axons called fascicles.

Detailed explanation-5: -There are 37 miles (60km) of nerves in the human body.