Answer: D) precapillary sphincters relax.
Explanation:
Blood flow to a tissue will decrease if precapillary sphincters relax as, capillaries provides glucose and oxygen to the cells and allows blood to flow through it when the muscle ring known as the precapillary Sphincters get relaxed. The blood flow is stopped when the precapillary sphincters constrict flow of blood. As, certain chemical signals causes feeder arterioles to dilate and bring more blood into local areas then, it causes precapillary sphincters to relax.
The left side of the heart is responsible for receiving blood from the pulmonary circuit from the lungs. So failure of it leads to increased pressure in the lungs (pulmonary circuit). That would cause the right side of the heart, which pumps blood to the lungs) to exert more force to keep blood moving through the pulmonary circuit.
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Answer:
sorry i will not b able to help on this
Explanation: