Definition

A soft, fatty substance that surrounds and protects the nerve fibers in the body, helping to speed up the transmission of electrical signals in the nervous system.

Example

Myelin is essential for the proper functioning of the nervous system, as it allows signals to travel quickly along the nerves.

Conversation

Did you know that myelin helps speed up nerve signals in our body?

Really? I had no idea it was that important.

Yeah, it's fascinating how myelin forms around nerve fibers to protect them.

That makes sense! I guess it's crucial for our nervous system.

Synonyms & Antonyms

Root Explanation

Myelin comes from the Greek word "myelos" (meaning marrow) and the suffix "-in" (used in chemistry to denote substances). The term refers to the substance that forms a protective sheath around nerve fibers, similar to how marrow is found within bones.

Memory Tip

Think of 'myelos' which relates to marrow, and remember that myelin is a substance that protects nerve fibers, much like marrow supports bones.

Visually Confused Words