Word | Noun | Adjective | Verb | Adverb |
---|---|---|---|---|
medulla | Yes | No | No | No |
medullary sheath | Yes | No | No | No |
medulla (noun) | medullary sheath (noun) |
---|---|
the inner part of an organ or structure in plant or animal | a layer of myelin encasing (and insulating) the axons of medullated nerve fibers |
lower or hindmost part of the brain; continuous with spinal cord; (`bulb' is an old term for medulla oblongata) | |
a white fatty substance that forms a medullary sheath around the axis cylinder of some nerve fibers |