John went skiing and twisted his knee Afterwards soaked in t

John went skiing, and twisted his knee. Afterwards, soaked in the hot tub in his apartment. By morning, his knee became stiff, swollen and painful to walk on. Explain the process that caused the swelling in his knee and the benefit of that process. What arteries are involved in carrying blood to this site? What changes would be expected in those arteries? Did spending time in the hot tub affected the swelling? If so, what affect did it have and how did it cause this effect? Lastly, what should John now do?

Solution

Application of heat causes the blood vessels to dilate, which increases the blood flow to the area eventually increases swelling, and that slows and even prevents healing from occurring, so after injury immediate action should be application of ice, the use of ice during the initial stage of an injury constricts blood vessels, which decreases blood flow to the injured area. The decreased blood flow helps to decrease swelling, inflammation, pain, and muscle spasm. Ice also decreases cell metabolism and helps to prevent tissue death.

Thus application of heat immediately after injury increased in johns case, now john can apply ice bag on knee, after swelling decreases john can try stretching, application of heat after 24 hours of injury.