心臟瓣膜

心臟瓣膜通常簡稱心瓣，係心入面種類似喉嘴嘅嘢，作用係維持循環系統喺心入面嘅單向郁動，唔畀啲血掉返轉頭行。哺乳動物嘅心通常有四個心瓣，決定咗血要流嘅流向。而心瓣前後嘅血壓差決定咗佢幾時開同幾時閂，而所謂嘅心跳聲其實就係心臟瓣膜開同閂嗰陣整出嚟嘅聲。

攷

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 Mitral Valve Repair at The Mount Sinai Hospital – "Mitral Valve Anatomy"
 3D, animated, rotatable heart valves (Rich media including Javascript and Flash player required)

解剖學
心