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Why does the diameter in the arterioles dilate during exercise?
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What causes arterioles in the damaged area to dilate during the inflammatory response?
Histamine
Why does the veins constrict and dilate during exercise?
Almost all the veins and arteries constrict and dilate during heavy exercise. Even capillaries bring a flush to the face and skin by dilation.
What does it mean when your muscles dilate?
During exercise your muscles need more energy from respiration in order to contract. So your heart beats faster and the arteries supplying the muscles dilate (widen)
What has to dilate during childbirth?
Your Cervix
What causes capillaries to dilate during inflammatory response?
Histamine
How do sweat glands function during exercise?
During exercise, the increased muscle activity increases body temperature. The skin responds to the need to bring body temperature back into normal range in two ways. The blood vessels near the surface of the skin dilate to release extra heat, and the sweat glands make perspiration, which evaporates to lower body temperature.
How does regular exercise improve cardivascular function during times of stress?
It keeps the blood vessels resilient and supple so that when an abrupt change in blood pressure occurs, for whatever reason the blood vessels can dilate or constrict to accommodate the change in blood pressure. In effect, exercise creates a pressure buffer to keep the blood pressure where it needs to be, thereby avoiding the possibility of damaging vital organs but especially the heart. Exercise creates a pressure buffer by conditioning the tone of the smooth muscle which covers the vessel and which is the means by which the vessel increases and decreases in diameter.
Why does blood flow slowly in a kidney during a vigorous exercise?
Blood flow to the kidneys and abdomen decreases duringexercise because the muscles need more oxygen, and so, the blood vessels in them dilate. This causes more blood to go to the muscles, leaving less blood in the rest of the body.
What is the substance released during the inflammatory reaction that causes small blood vessels to dilate?
Histamine
What is the substance released during the inflammatory reaction that causes small blood vessels to dilate is?
Histamine
During fight or flight reaction the sympathetic nervous system causes vasodilation in skeletal muscle but vasoconstriction in the skin It is able to achieve these opposite effects because?
the muscle arterioles have α-adrenergic receptors and the skin arterioles have β-adrenergic receptors
During exercise muscle cells use what?
During exercise muscle cells use oxygen.
