Answer:
A. the blood pressure in the heart chamber from which blood is flowing is higher than the blood pressure in the chamber to which the blood is supposed to flow.
Explanation:
A heart valve opens or shuts on both sides with varying blood pressure. As the heart muscle contracts and relaxes, the valves open and shut. This lets blood flow into the ventricles and atria at alternate times.
When the left ventricle relaxes, the aortic valve closes and the mitral valve opens. This lets blood flow from the left atrium into the left ventricle.
Aerobic activity. Get at least 150 minutes of moderate aerobic activity or 75 minutes of vigorous aerobic activity a week, or a combination of moderate and vigorous activity. The guidelines suggest that you spread out this exercise during the course of a week.
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A prescription is a written instruction by a medical doctor authorizing a patient to buy a medicine which can be distinguish from an over the counter drug.In this scenario, in the prescription example would be stated apply hydrocortisone ointment PRN or as needed.
To help care for people and to try to prevent suffering.
Answer:
The organic molecules required for building cellular material and tissues must come from food. Carbohydrates or sugars are the primary source of organic carbons in the animal body. The carbon and nitrogen derived from these become the building block for nucleotides, nucleic acids, proteins, cells, and tissues.
