venous valves 中文意思是什麼
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Objectives : the purposes of the present study are as follows : ( 1 ) anatomical study inclulding observation and measurement on arterial, especially venous system of flap was performed to attempt to illuminate the regular patterns of the distribution of the arteries, veins and their branches in the axial vascular skin flap. ( 2 ) fathoming the origination, distribution, drainage scope and communicating path of deep and superficial veins or accompanied and unaccompanied veins. ( 3 ) elucidating the positions, shape and functions of venous valves in deep and superficial venous stem and its communicating branches, observing their affects on the venous blood circulation
目的本課題的研究目的包括以下6項內容： （ 1 ）對皮瓣的動、靜脈系統，特別是靜脈系統進行解剖學研究，探索皮瓣內軸心動、靜脈走行及分支分佈規律； （ 2 ）闡明皮瓣內深、淺靜脈系或伴行靜脈與非伴行靜脈的起始、走行、引流范圍及交通途徑； （ 3 ）觀測皮瓣深、淺靜脈干及其交通支內靜脈瓣部位、形態、功能及對靜脈間血液流通的影響； （ 4 ）明確皮瓣的動、靜脈伴行特點與靜脈迴流規律； （ 5 ）確定皮瓣靜脈迴流的主渠道； （ 6 ）為皮瓣游離移植吻合靜脈的選擇，提供解剖學依據，並對跨區供血皮瓣靜脈迴流與交通、非生理性皮瓣的血液循環進行探索。 -
Varicose veins may be caused by genetic weakness of the vein walls or their valves, excessive pressure within the veins due to constipation, long periods of standing and / or heavy lifting, damage to veins or venous valves, pregnancy
靜脈曲脹的形成是由於：先天性靜脈血管壁或閥問題、靜脈血管因便秘而導致壓力過大、長期站立或體重過量、靜脈閥受到損傷、懷孕。
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