Which of the following occurs when blood vessels dilate? increase in blood pressure decrease in blood pressure increase in blood volume decrease in blood volume

Decrease in blood pressure

Explanation:

Blood vessels are the channels through which blood circulates throughout the body. Arteries, veins and capillaries are the main types of blood vessels in the circulatory system. Blood vessels can either constrict or dilate, either process affects how blood flows.

Dilation means to expand or increase in size. Blood vessels dilate when the muscles in their walls relax. Since the blood vessels is now widened, it allow the flow of blood to become faster and increased. Hence, lowering or reducing the force at which the blood passes through the vessels known as blood pressure. Therefore, when a blood vessel dilates/expands, blood flows easily, and this ultimately reduces the blood pressure.

volcanoes (an event in the geosphere) release a large amount of particulate matter into the atmosphere. these particles serve as nuclei for the formation of water droplets (hydrosphere). rainfall (hydrosphere) often increases following an eruption, stimulating plant growth (biosphere).

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