Definitions for

Overview of noun medulla

The noun medulla has 3 senses? (no senses from tagged texts)
1. myelin, myeline, medulla

(a white fatty substance that forms a medullary sheath around the axis cylinder of some nerve fibers)

2. medulla oblongata, medulla, bulb

(lower or hindmost part of the brain; continuous with spinal cord; (`bulb' is an old term for medulla oblongata); "the medulla oblongata is the most vital part of the brain because it contains centers controlling breathing and heart functioning")

3. medulla

(the inner part of an organ or structure in plant or animal) © 2001-2013, Demand Media, all rights reserved. The database is based on Word Net a lexical database for the English language. see disclaimer
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