Info

I 40er

Large veins

Small veins and venules

Systemic Lungs Heart Systemic Capillaries veins 10-12% 8-11% arteries 4-5% 60-70% 10-12%

Figure 15.33

Most of the blood volume is contained within the veins and venules.

male at rest. The volume discharged from the ventricle per minute is called the cardiac output. It is calculated by multiplying the stroke volume by the heart rate in beats per minute. (Cardiac output = stroke volume x heart rate.) Thus, if the stroke volume is 70 milliliters and the heart rate is 72 beats per minute, the cardiac output is 5,040 milliliters per minute.

Blood pressure varies with the cardiac output. If either the stroke volume or the heart rate increases, so does the cardiac output, and, as a result, blood pressure

10 Ways To Fight Off Cancer

10 Ways To Fight Off Cancer

Learning About 10 Ways Fight Off Cancer Can Have Amazing Benefits For Your Life The Best Tips On How To Keep This Killer At Bay Discovering that you or a loved one has cancer can be utterly terrifying. All the same, once you comprehend the causes of cancer and learn how to reverse those causes, you or your loved one may have more than a fighting chance of beating out cancer.

Get My Free Ebook


Post a comment