What it means
The blood pushed out in one beat, about 60 to 100 mL in a resting adult. Stroke volume times heart rateHART RAYTHow many times the heart beats per minute.Full entry gives the cardiac outputKAR-dee-ak OWT-putThe amount of blood the heart pumps out in one minute.Full entry . It depends on how full the heart is before it beats (preload), how hard the heart muscle squeezes (contractilitykon-trak-TIL-ih-teeThe ability of a muscle, especially the heart muscle, to shorten and squeeze with force.contract draw together-ility abilityFull entry ), and how much resistance it must push against (afterload).
At a glance
| Abbreviations | SV |
|---|---|
| Also written | SV |
Related terms
heart rate
How many times the heart beats per minute.
cardiac output
The amount of blood the heart pumps out in one minute.
systole
The part of each heartbeat when the heart muscle squeezes and pumps blood out.
contractility
The ability of a muscle, especially the heart muscle, to shorten and squeeze with force.