The heart does not pump all the blood out of the  ventricle. Normally, only about two-thirds of the blood in the  ventricle is put out with each beat. What blood is actually pumped  from the left ventricle is the stroke volume and it, together with  the heart rate, determines the cardiac output.
http://www.answers.com/Q/What_is_the_amount_of_blood_pumped_in_1_heartbeat
In a healthy heart blood flows one way through the heart due to heart valves, which prevent backflow. The heart is enclosed in a protective sac, the pericardium, which also contains a small amount of fluid. The wall of the heart is made up of three layers: epicardium, myocardium, and endocardium. The heart pumps blood with a rhythm determined by a group of pacemaking cells in the sinoatrial node. These generate a current that causes contraction of the heart, traveling through the atrioventricular node and along the conduction system of the heart.
https://en.wikipedia.org/wiki/The_human_heart
Each heartbeat has two basic parts: diastole (di-AS-toe-lee) and systole (SIS-toe-lee). During diastole, the atria and ventricles of your heart relax and begin to fill with blood. At the end of diastole, your heart's atria contract (atrial systole) and pump blood into the ventricles. The atria then begin to relax. Next, your heart's ventricles contract (ventricular systole) and pump blood out of your heart.
https://www.nhlbi.nih.gov/health/health-topics/topics/hhw/contraction
A normal heart ejection fraction refers to the volume of blood pumped out of the heart after each contraction, explains Dr. Martha Grogan, writing for Mayo Clinic. A heart ejection rate of 50 to 55 percent or more is considered normal, while a rate lower than 50 percent is considered abnormal. Continue Reading.
https://www.reference.com/science/normal-heart-ejection-fraction-c8677f5c3dc99aa4
Stroke volume is a measure of the blood volume pumped out of the left ventricle in one heartbeat. It is calculated by subtracting end systolic volume (ESV; the amount of blood remaining just after ventricular contraction) from end diastolic volume (EDV; the amount of blood in the ventricles just before contraction).
http://www.sharinginhealth.ca/biology/heart_pump.html
Heart Contraction and Blood Flow. The animation below shows how your heart pumps blood. Click the start button to play the animation. Written and spoken explanations are provided with each frame. Use the buttons in the lower right corner to pause, restart, or replay the animation, or use the scroll bar below the buttons to move through the frames.
https://www.nhlbi.nih.gov/health/health-topics/topics/hhw/contraction
When the heart contracts, this blood is pumped out into the rest of the body. However, even the most forceful of contractions cannot empty these heart chambers of all the blood. For this reason, a heart ejection fraction refers to the amount of blood a heart pumps out at each contraction.
https://www.reference.com/science/normal-heart-ejection-fraction-c8677f5c3dc99aa4
Cardiac output is the amount of blood pumped by each ventricle in one minute. Stroke volume is the amount of blood pumped by each ventricle with each heartbeat. If you need a …specific number: stroke volume x heart rate = Cardiac output.
http://www.answers.com/Q/What_is_the_amount_of_blood_pumped_in_1_heartbeat
A)the amount of blood filling each ventricle at the end of diastole. B)the amount of blood pumped out of the heart during every ventricular contraction. C)the number of impulses fired by the SA node in one minute. D)the amount of blood pumped out of each ventricle in one minute. E)the number of times the heart beats in one minute.
http://www.easynotecards.com/notecard_set/11385
70 ml of blood are pumped out of the left ventricle with each contraction.
http://www.answers.com/Q/What_is_the_amount_of_blood_pumped_in_1_heartbeat
amount of blood pumped out of heart with each contraction
70 ml of blood are pumped out of the left ventricle with each contraction.