| 词汇 | foramen |
| 释义 | foramen noun[ C ] medical specializeduk /fəˈreɪ.mən/ us /fəˈreɪ.mən/pluralforaminauk /fəˈreɪ.mɪ.nə/ us /-mə-/ a natural passage in the body, especially into a bone（尤指进入骨的）通道 Substances & structures in the body abductor accessorius ACL actin adductor funiculus fusiform glomerular glomerulus GnRH navicular neuroendocrine neurohormonal neurohormone nociceptive tendinous tendinum tendo tensor Th It is formed from two centres, each of which is originally a ring round the carotid foramen. It is remarkable that neither of these observers should have noticed the foramen in the testa. The nerve trunks make their way out of the spinal canal through apertures between the vertebra, called the inter-vertebral foramina and then divide into numerous branches, their ramifications extending principally to the muscles and the skin. The next three pairs of nerves all arise from the medulla, and escape from the cavity of the skull through the same foramen. The teeth are smaller, and the infra-orbital foramen much larger. Examples of foramenforamen The foramen ovale is enlarged to enable oxygenated blood to pass freely from the left atrium to the right atrium. The foramen for the orbital artery, generally situated immediately above the ascending wing of the parasphenoid in albuloids, was not observed. The arterial duct and the oval foramen were patent. In most cases there is an oval foramen, although occasionally a significant atrial septal defect is evident. It is important to note that complete closure was achieved in all patients with patent oval foramen after presumed paradoxical embolism. As a third consequence, there is a reciprocal influence of the diastolic function of the two ventricles through a widely patent oval foramen. The mandibular foramen opens as a small pit anterior to the notch between the angular process and the condyle. The circulatory changes that result in functional closure of the foramen are sudden and abrupt, occurring within the first few minutes after birth. The atrial septum was intact, but was without discernible features of the oval foramen or its valve. The jugular foramen is of particular importance, as it formed the exit for the internal jugular vein. The anterior meckelian foramen is just over 10 mm in length and occurs wholly within the postsplenial. No significant intraatrial shunt were detected through the foramen ovale. Intra-cranial pressure was reduced by release of the cerebrospinal fluid through an opening of the dura mater at the foramen magnum. Prenatal narrowing or closure of the foramen ovale. Functional limitations of the foramen ovale in the human foetal heart. See all examples of foramen 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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