I'm a little red blood cell heading for the heart,
The inferior vena cava's （下腔静脉） where my journey starts,
My O2 level's low 'cause I gave it the muscles
in the legs when you were running it was powering your hustle

Now I'm in the right atrium （右心房）, chamber number 1,
All your blood comes here, doesn't matter where it's from,
superior vena cava （上腔静脉） drained the arms and head,
It's deoxygenated （去氧的） blood, cherry dark red!

I pass through a valve when the atrium contracts,
This valve's got two names, here are the facts.
You might know it as right atrio-ventricular （房室的）
Or tricuspid （三尖瓣） if you want to be particular

CHORUS
Pump it up! Pump it up!
I see your heart throb （跳动）
Pump it up! Pump it up!
Let me do my job
Pump it up! Pump it up!
Improve your condition,
'Cause oxygenation is my mission.

Now to the next chamber right ventricle I pass,
I'm suffering I'm still low, in oxygen gas,
Right ventricle contracts I'm heading for the lungs,
Through the pulmonary valve （肺动脉瓣）, I first get flung（被投出去了）,

Now my location is the pulmonary artery （肺动脉）,
Which branches right and left toward the system respiratory,
Through smaller arteries to a lung capillary （毛细血管）
Where CO2 goes out of me and oxygen goes into me,

I feel so great, I'm oxygenated
And I'm flowing to the pulmonary vein I'm elated,
Cause I'm heading back to the heart as its thumpin',
To the left atrium as the heart keeps pumpin'

CHORUS

Pump it up! Pump it up!
I see your heart throb
Pump it up! Pump it up!
Let me do my job
Pump it up! Pump it up!
Improve your condition,
'Cause oxygenation is my mission.

Left atrium sends me through the left a-v valve,
Left Atrio-ventricular or bicuspid valve,（二尖瓣）
To the left ventricle, which when it contracts,
sends me through the aortic valve putting me on track,

To go to the aorta, the biggest artery,
from there to any artery and any capillary
Maybe liver, bones, muscles, kidneys, brain, small intestines,
Wherever I go I'll give up oxygen,

And pick up some CO2, and go into a vein,
and I'll find myself in the vena cava again,
then back to heart to repeat this story
'Bout our journey through the system circulatory,

CHORUS

Pump it up! Pump it up!
I see your heart throb
Pump it up! Pump it up!
Let me do my job
Pump it up! Pump it up!
Improve your condition,
'Cause oxygenation is my mission.

Main points: can't be over-rated
Right side of the heart's deoxygenated
Left side has blood full of oxygen,
Repeat that til you know it now say it again.

Right side blood: deoxygenated
Left side blood: oxygenated
Chambers on the top: atria
Chambers on the bottom: ventricles

Biggest artery is the aorta,
Vein that brings blood to the heart
the vena cava
and if you want more questions to review
click the link for circulatory system rap 2

【一生可能只见一次的病例】

欢迎购买《GAP-CCBC精彩病例荟萃》

“很多疑难复杂病例，一个医生一生也只能见到一次。”而《GAP-CCBC精彩病例荟萃2015》就是这样一本书。

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关于非法网站冒用我刊名义进行征稿的特别提醒

近期我们发现一些网站冒用“中国循环杂志”名义征稿，并承诺“职称论文权威快速发表”。

我刊郑重提醒各位作者，向《中国循环杂志》投稿，一定要登录中国循环杂志官方网站

http://www.chinacirculation.org

进入“作者投稿”，在“作者投稿管理平台”中投稿。

本刊联系电话：010-68331146、010-88396014