medulla - Kamus SABDA Mobile

Found 1 definition: medulla.

Pos: Noun

[WORDNET DICTIONARY]

Noun medulla has 3 senses

1. medulla(n = noun.substance) myelin, myeline - a white fatty substance that forms a medullary sheath around the axis cylinder of some nerve fibers;
is a kind of fat

2. medulla(n = noun.body) bulb, medulla oblongata - 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"
is a kind of neural structure
is a part of brain-stem, brain stem, brainstem
has parts: respiratory center
Derived form adjective medullary₂

3. medulla(n = noun.body) - the inner part of an organ or structure in plant or animal;
is a kind of animal tissue, plant tissue
has particulars: adrenal medulla
Antonym: cortex
Derived form adjective medullary₃

[CIDE DICTIONARY]

medulla, n. [L.].

1. Marrow; pith; hence, essence. Milton. [1913 Webster]

2. The marrow of bones; the deep or inner portion of an organ or part; as, the medulla, or medullary substance, of the kidney; specifically, the medula oblongata. [1913 Webster]

3. A soft tissue, occupying the center of the stem or branch of a plant; pith. [1913 Webster]

4. See medulla oblongata. [PJC]

∥Medulla oblongata. [L., oblong medulla] (Anat.), the posterior part of the brain connected with the spinal cord. It includes all the hindbrain except the cerebellum and pons, and from it a large part of the cranial nerves arise. It controls very largely respiration, circulation, swallowing, and other functions, and is the most vital part of the brain; -- called also bulb of the spinal cord. See Brain.

[OXFORD DICTIONARY]

medulla, n.
1 the inner region of certain organs or tissues usu. when it is distinguishable from the outer region or cortex, as in hair or a kidney.
2 the myelin layer of certain nerve fibres.
3 the soft internal tissue of plants.

Idiom:
medulla oblongata the continuation of the spinal cord within the skull, forming the lowest part of the brain stem.

Derivative:
medullary adj.

Etymology:
L, = pith, marrow, prob. rel. to medius middle