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Sagot :
the main function of a valve is to prevent the back flow of blood and if the valves didn't close then the blood would return to the previous chambers hence blood wouldn't be able to reach different parts of the body
Answer:
The volume of blood pumped from the ventricles to the body would be reduced because blood would backflow into the atria
took the test and passed enjoy for some other answer if you are taking the second try. . . . all correct got 100%
A drug that is meant to reduce blood pressure would have which of the following effects?
Dilate the blood vessels
Which of the following must have thick flexible walls to withstand the strong blood pressure produced as the heart pumps out blood?
Arteries
Which of the following best describes the part of the blood composition that forms clots around wounds to prevent blood loss?
Platelets
What would most likely happen if capillaries had thick walls and large diameters?
The blood cells flowing through them would not be able to exchange gas with surrounding tissue.
Which of the following is the tissue that separates the left and right sides of the heart?
Septum
A person has parents with high cholesterol. How will this impact the person's risk of developing a blood disease?
The person will have a higher risk for atherosclerosis regardless of his current or past lifestyle choices.
What would happen if the valves separating the chambers in a person's heart did not close?
The volume of blood pumped from the ventricles to the body would be reduced because blood would backflow into the atria.
Which of the following best explains what will happen if the blood gets too cold?
It will have a high viscosity and increased resistance.
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