The muscle system sends the blood from the heart to the lungs to be purified, and then it gets sent back to the heart again. Nutritive fluid circulates through the circulatory system (heart, veins, arteries, and capillaries) to supply oxygen and nutrients to many cells and tissues and takes out carbon dioxide and waste from them. I hope this helps.
Arteries and veins carry blood all around the body
Answer:
Doctor assistants often take medical histories and record vital signs of patients. Doctor assistants complete administrative and clinical tasks in the offices of physicians, hospitals, and other healthcare facilities. Sometimes they help the doctors with the operations or medicine.
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