Why does the heart automatically adjust the flow of blood to match activity levels? A. Extreme activity damages blood cells and
the body needs replacements. B. The heart requires more oxygen when exercising. C. It builds up a higher level of oxygen in the blood. D. Organs and muscles require more blood under stress.
Option C. It builds up a higher level of oxygen in the blood.
At rest, the heart pumps out about 5,000mL/min of blood. This is called the cardiac output. One can say that, at rest, the total systemic blood flow throughout the body is about 5L/min. At the extreme level of activity the heart pumps much harder and faster and is usually able to quintuple its output to about 25L/min of blood flow. This amount applies to the right side of the heart, which pumps blood to the lungs so it can pick up oxygen and drop off Carbon dioxide, and the left side of the heart that pumps it to the rest of the organs and tissues of the body.
It depends on which drug is to be given and what is its mechanism of action. e.g. for any antibiotic intra venous route will be a suitable choice whereas in case of a laxative we can administer it rectally if oral is not tolerated. thanks
You can drive if you have a license and you are listed in your aunts auto insurance. You can also call a taxi or Uber or Lift or other similar services. You can finally call some other relative or your friend to pick you up.
