| 词汇 | adrenal-medulla |
| 释义 | adrenal medulla noun[ C ] anatomy specializeduk /əˌdriː.nəl medˈʌl.ə/ us /əˌdriː.nəl məˈdʌl.ə/ the inner part of the adrenal gland that produces adrenaline肾上腺髓质 Glands in the human body acinar acinus adenohypophysis adrenal adrenal cortex endocrine gland endocrinologic endocrinological exocrine gland gastric gland neuroendocrinology neurohypophyseal neurohypophysis oil gland pancreas prostatic pyloric gland sebaceous gland suprarenal gland sweat gland adrenal medulla | American Dictionaryadrenal medulla noun[ C ] us/əˈdrin·əl məˈdʌl·ə/ biology the inner part of the adrenal gland that producesadrenaline Examples of adrenal medullaadrenal medulla First causing a release of glucose from the liver and epinephrine (adrenaline) from the adrenalmedulla, it causes stimulation. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. There are two parts of the adrenal glands, the adrenal cortex and the adrenalmedulla. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. But the adrenalmedulla, in contrast to the adrenal cortex, is not required for survival. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The adrenalmedulla produces neurotransmitters, namely, the catecholamines, epinephrine, and norepinephrine. These biological responses are mediated both by direct autonomic innervation of target organs by postganglionic neurons and by secretion of epinephrine and norepinephrine by the adrenalmedulla. Release of the hormones epinephrine and norepinephrine from the adrenalmedulla of the adrenal glands is part of the fight-or-flight response. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Nicotinic receptors cause the release of catecholamine from the adrenalmedulla, and also site specific excitation or inhibition in brain. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The two exceptions mentioned above are postganglionic neurons of sweat glands and chromaffin cells of the adrenalmedulla. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Using immunohistochemistry, synaptophysin can be demonstrated in a range of neural and neuroendocrine tissues, including cells of the adrenalmedulla and pancreatic islets. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Because it is innervated by preganglionic nerve fibers, the adrenalmedulla can be considered as a specialized sympathetic ganglion. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These substances are released in the adrenalmedulla, which is richly vascular. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The neural crest of the ectoderm develops into: peripheral nervous system, adrenalmedulla, melanocytes, facial cartilage, dentin of teeth. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. At seven weeks of gestation, the adrenal cells are joined by sympathetic cells that originate from the neural crest to form the adrenalmedulla. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In the adrenalmedulla, acetylcholine is used as a neurotransmitter, and the receptor is of the "nicotinic" type. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The adrenalmedulla is considered a sympathetic ganglion and, like other sympathetic ganglia, is supplied by cholinergic preganglionic sympathetic fibers; acetylcholine is its neurotransmitter. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. See all examples of adrenal 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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