The amount of blood the heart pumps with each beat (contraction) is called the stroke volume. The stroke volume multiplied by the heart rate (number of beats) per minute is called the cardiac output per minute, and when people simply say cardiac output, they are usually referring to this cardiac output per minute. This cardiac output converted per body surface area is called the stroke volume coefficient, which is approximately 4 liters per minute. Source: Shogakukan Home Medical Library Information |
心臓が、1回の拍動(はくどう)(収縮)で拍出する(送り出す)血液の量を1回拍出量といいます。 1回拍出量に、1分間の心拍数(しんぱくすう)(拍動回数)を掛けたものを1分間の心拍出量といい、ふつう、単に心拍出量といった場合は、この1分間の心拍出量をさします。 この心拍出量を体表面積あたりに換算したものを拍出量係数といい、1分間に4ℓ前後です。 出典 小学館家庭医学館について 情報 |
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