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单词 conus
释义

conus1

/ˈkəʊnəs /
noun (plural coni /ˈkəʊnʌɪ/) Anatomy
1 (in full conus arteriosus /ɑːˌtɪərɪˈəʊsəs/) The upper front part of the right ventricle of the heart.Since the aorta and the pulmonary artery develop from a common conus arteriosus, irregular and imperfect development of the septum between them may also produce variations....
  • The heart appears to be the most primitive of all adult vertebrates, with the auricle, ventricle and conus arteriosus arranged in straight line, rather than being doubled over one another.
  • A conus artery arising from the aorta was found in 50% of 651 subjects.
2 (in full conus medullaris /ˌmɛdəˈlɑːrɪs/) The conical lower extremity of the spinal cord.The spinal cord tapers caudally to become the conus medullaris....
  • An MRI (not shown) showed the conus medullaris to be at L1 - L2, and the sacrum to be dysplastic.
  • A spinal ultrasound from the second day of life (not provided) showed the spinal cord conus to be normally positioned at L1.

Origin

Late 19th century: from Latin, literally 'cone'.

CONUS2

/ˈkōnəs /
abbreviation chiefly Military
The 48 contiguous states in the United States (that is, all the states except Alaska and Hawaii).

Origin

Acronym, from contiguous United States.

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更新时间:2024/12/25 1:18:37