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medulla
(redirected from medullar)

   Also found in: Dictionary/thesaurus, Medical, Wikipedia 0.01 sec.
medulla: see brain stem brain stem, lower part of the brain, adjoining and structurally continuous with the spinal cord. The upper segment of the human brain stem, the pons, contains nerve fibers that connect the two halves of the cerebellum.
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medulla
1. Anatomy the innermost part of an organ or structure
2. Botany another name for pith

medulla [mə′dəl·ə]
(anatomy)
The central part of certain organs and structures such as the adrenal glands and hair.
Marrow, such as of bone or the spinal cord.
(botany)
Pith.
The central spongy portion of some fungi.
(neuroscience)


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For the anterior part of MD, which is initially situated just caudal and ventral to the anterior ventral nucleus; lateral to the lateral dorsal nucleus; the internal medullar lamina (IML) spreads ventrally, expands over the anterior surface of the MD and then continues posterior as thin dispersed strips on either side of the mammillothalamic tract (MTT).
If used internally in large doses, Eucalyptus oil can turn into an irritant to the kidneys and suppress the nervous system by eventually arresting the respiratory system on the medullar center.
Magnetic resonance imaging (MRI) showed a focal lesion in the left thalamus, a medullar cord enlargement, and multiple lesions in the spinal cord white matter.
 
 
 
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