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precava

/priːˈkeɪ.və/

翻译: 名词,指收集头部、上肢和胸部缺氧血并汇入右心房的大静脉,由左右头臂静脉汇合而成。

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noun

C2formalcommonmedical/priːˈkeɪ.və/

A noun referring to a large vein that receives deoxygenated blood from the head, arms, and chest and empties into the right atrium of the heart, formed from the azygos and both brachiocephalic veins.

  • 🇨🇳名词,指收集头部、上肢和胸部缺氧血并汇入右心房的大静脉,由左右头臂静脉汇合而成。
  1. Superior vena cava C2 formal medical

    A large vein that receives deoxygenated blood from the upper half of the body, including the head, arms, and chest, and empties it into the right atrium of the heart. It is formed by the union of the azygos and both brachiocephalic veins.

    • The precava carries blood from the head and arms to the heart.
    • Surgeons carefully avoid damaging the precava during thoracic operations.
    • Blood from the upper body flows into the right atrium via the precava.

    🇨🇳上腔静脉