V2EX descending aorta

Descending Aorta

释义 Definition(中文)

descending aorta降主动脉。指主动脉从主动脉弓之后向下走行的部分,通常分为胸降主动脉(在胸腔内)和腹主动脉(进入腹腔后)。常用于解剖学、影像学与心血管疾病相关描述(如动脉瘤、夹层等)。

发音 Pronunciation(IPA)

/dsnd ert/

例句 Examples

The descending aorta carries blood from the heart down to the lower body.
降主动脉将血液从心脏向下输送到身体下半部。

A CT scan showed a tear in the wall of the descending aorta, suggesting an aortic dissection.
CT 扫描显示降主动脉血管壁有撕裂,提示可能存在主动脉夹层。

词源 Etymology(中文)

aorta 来自希腊语 aortē(主动脉),与“悬挂、提起”的概念相关,古人认为该血管“悬系”于心脏附近;descending 来自拉丁语 descendere(向下走、下降)。合起来字面意思就是“向下走行的主动脉”,对应其解剖走向。

相关词 Related Words

文学与典籍 Literary Works(出现示例)

  • Gray’s Anatomy(《格雷氏解剖学》)
  • Netter’s Atlas of Human Anatomy(《奈特人体解剖图谱》)
  • Harrison’s Principles of Internal Medicine(《哈里森内科学原理》)
  • Robbins and Cotran Pathologic Basis of Disease(《罗宾斯病理学基础》)
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