The Liver Up Close

时间：2014-12-09 03:10:57

（单词翻译:单击）

When viewed under a microscope, the liver is seen as large network of units called hepatic lobules. The hepatic lobule is very small and looks like a six-sided cylinder1.
 
The lobule itself is surrounded by connective tissue and has 5 to 7 clusters of vessels2 around its edges. These vessels include a branch of the portal vein3, a branch of the hepatic artery4, and a bile duct.
 
A central vein runs through the middle of the lobe5 and is surrounded by cords of liver cells that radiate out in all directions. Between these cords are wide thin walled blood vessels called sinusoids. All of the blood drains into a hepatic vein which then circulates throughout the body.

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1 cylinder rngza     
n.圆筒，柱(面)，汽缸
参考例句：
  • What's the volume of this cylinder?这个圆筒的体积有多少？
  • The cylinder is getting too much gas and not enough air.汽缸里汽油太多而空气不足。
2 vessels fc9307c2593b522954eadb3ee6c57480     
n.血管( vessel的名词复数 )；船；容器；（具有特殊品质或接受特殊品质的）人
参考例句：
  • The river is navigable by vessels of up to 90 tons. 90 吨以下的船只可以从这条河通过。 来自《简明英汉词典》
  • All modern vessels of any size are fitted with radar installations. 所有现代化船只都有雷达装置。 来自《现代汉英综合大词典》
3 vein fi9w0     
n.血管，静脉；叶脉，纹理；情绪；vt.使成脉络
参考例句：
  • The girl is not in the vein for singing today.那女孩今天没有心情唱歌。
  • The doctor injects glucose into the patient's vein.医生把葡萄糖注射入病人的静脉。
4 artery 5ekyE     
n.干线，要道；动脉
参考例句：
  • We couldn't feel the changes in the blood pressure within the artery.我们无法感觉到动脉血管内血压的变化。
  • The aorta is the largest artery in the body.主动脉是人体中的最大动脉。
5 lobe r8azn     
n.耳垂，（肺，肝等的）叶
参考例句：
  • Tiny electrical sensors are placed on your scalp and on each ear lobe.小电器传感器放置在您的头皮和对每个耳垂。
  • The frontal lobe of the brain is responsible for controlling movement.大脑前叶的功能是控制行动。

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