词汇 | medulla |
释义 | medulla noun[ C ] medical specializeduk /medˈʌl.ə/ us /məˈdʌl.ə/ the inner part of a body part or organ(身体部分或器官)髓质,最内部分 See also medulla oblongataspecialized Substances & structures in the body abductor accessorius ACL actin adductor fundus funiculus fusiform glomerular glomerulus navicular neuroendocrine neurohormonal neurohormone nociceptive tendinous tendinum tendo tensor Th medulla | American Dictionarymedulla noun[ Cusually sing ] us/məˈdʌl·ə/ biology the lowest part of the brain, which controls the body's automatic processes such as the way the heart works and the breathing Examples of medullamedulla Firing patterns of neurons in abducens nucleus and surrounding medulla and their relation to eye movements. Lesions and parasites were most frequently found in heavily myelinated tracts including the corpus callosum, internal and external capsules, cerebellar peduncles and cerebellar medulla. Salivation is largely controlled by the salivary centre, located in the medulla and pons, through the autonomic nervous system. At this stage all of the germ cells were concentrated in the ovarian cortex and hence the cortex could be separated from the medulla. Drawings of transverse sections of the spinal cord, lower medulla and thalamus are shown. We defined a nonlimbic "brain core" consisting of the striatum, diencephalon, medulla, and mesencephalon. The telencephalic factor has the striatum and diencephalon as secondary structures, the olfactory factor has the paleocortex, and the somatic factor has the medulla. Their processes extensively enwrap lamina cartridges and reflect the organization into layers and columns in the medulla. The sequential events leading to follicle formation take place entirely within ovigerous cords with first follicle forming at interface of cortex and medulla. The adrenal medulla produces neurotransmitters, namely, the catecholamines, epinephrine, and norepinephrine. At the boundary with the medulla the primordial follicles begin to break away from clusters. A second transverse cut was performed at the caudal level of the medulla. Compared with the other two phenotypes, the uncovered mouse had only very short, slight fuzzy hairs that lacked a medulla. The olfactory bulb and medulla (heavy lines) each have their own patterns, but the remaining nine lines are all roughly parallel. This organization is repeated across the whole lamina and medulla. See all examples of medulla These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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