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| Description: Cardiac Output (CO) CO is the volume of blood ejected from the left or right ventricle into the aorta or pulmonary trunk each minute Stroke volume (SV) is the amount of blood pumped out of the ventricle in one beat CO (mL/min) = SV (mL/beat) x HR (beats/min) Regulation of Stroke Volume 3 factors regulate stroke volume: Preload Contractility Afterload Regulation of Heart Rate Several factors regulate heart rate: Autonomic nervous system Hormones Ions Age Gender Physical fitness Temperature Picture Stats: Views: 188 Filesize: 1.02MB Height: 638 Width: 1350 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=41041 |