Interesting one... a try.

FYI:

Heart Valves

The heart has four chambers. The upper two are the right and left atria. The lower two are the right and left ventricles. Blood is pumped through the chambers, aided by four heart valves. The valves open and close to let the blood flow in only one direction.
What are the four heart valves?

The tricuspid valve is between the right atrium and right ventricle.
The pulmonary or pulmonic valve is between the right ventricle and the pulmonary artery.
The mitral valve is between the left atrium and left ventricle.
The ***aortic valve*** is between the left ventricle and the aorta.

[PPT] 第八章 循環系統疾病File Format: Microsoft Powerpoint - View as HTML
三、主A瓣狹窄 （aortic stenosis）. 1.病因. 常見：風濕性主A瓣膜炎 ... 聽診：主A 瓣聽診區收縮期吹風樣雜音. 四、主A瓣關閉不全 （aortic insufficiency） ...
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主動脈瓣狹窄PPT | 醫學幻燈下載| 39康復網| 醫源世界 - [ Translate this page ][ 簡體 ]主動脈瓣狹窄(AS) (aortic stenosis ) 主動脈瓣狹窄(AS) 1．風心病：風濕性炎症過程→ 瓣膜交界處 ... UCG：主A瓣口面積＜0．5cm2，跨瓣壓差＞50mmHg,為手術指徵。 ...
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[PPT] PowerPoint 演示文稿File Format: Microsoft Powerpoint 97 - View as HTML
主動脈關閉不全 Aortic stenosis. 機械瓣膜 Artificial valve ... 馬方綜合徵（主動脈 受損） Marfan’s syndrome with Aortic involvement ...
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[PPT] 脈管系統File Format: Microsoft Powerpoint - View as HTML
主A瓣右瓣. 主A瓣左瓣. 是心肌和瓣膜附著處的纖維支架。包括:左、右纖維三角, ... 主A瓣、半月瓣小結。主A竇。 左半心的血流是:左心房→左房室口→左心室→主A口→主A ...
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[PPT] 第四章.循環系統File Format: Microsoft Powerpoint - View as HTML
房壓 室壓 主A壓，房室瓣開，主A瓣關，血流由房到室，心室容積變大。 ... 血受主A 瓣阻擋 短暫向上一波。 4）.降支後段：心舒期 血液流向外周 血壓 降支後段 ...
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Note added at 2 hrs (2006-04-19 17:49:20 GMT)
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The first ref. source:
http://www.americanheart.org/presenter.jhtml?identifier=4598