medulla | ||
1. | [ noun ] (anatomy,zoology,neuroscience) lower or hindmost part of the brain; continuous with spinal cord; (`bulb' is an old term for medulla oblongata) | |
Synonyms: | bulb medulla_oblongata | |
Examples: | "the medulla oblongata is the most vital part of the brain because it contains centers controlling breathing and heart functioning" |
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Related terms: | neural_structure hindbrain brainstem respiratory_center | |
2. | [ noun ] (chemistry,food) a white fatty substance that forms a medullary sheath around the axis cylinder of some nerve fibers | |
Synonyms: | myeline myelin | |
Related terms: | fat medullary_sheath | |
3. | [ noun ] (botany,zoology) the inner part of an organ or structure in plant or animal | |
Related terms: | cortex plant_tissue animal_tissue adrenal_medulla | |
Similar spelling: |
meddle metal Medel medal |