n. redness: one of the classical signs of inflammation in a tissue, the other three being *calor (heat), *dolor (pain), and *tumor (swelling). The redness of inflamed tissue is due to the increase in size of the small blood vessels in the area, which therefore contain more blood.
n. heat: one of the classical signs of inflammation in a tissue, the other three being *rubor (redness), *dolor (pain), and *tumor (swelling). An inflamed region has a higher temperature than normal because of the distended blood vessels, which allow an increased flow of blood.... calor
n. pain: one of the classical signs of inflammation in a tissue, the other three being *calor (heat), *rubor (redness), and *tumor (swelling). The pain in inflammation is thought to be due to the release of chemicals from damaged cells.... dolor
n. swelling: one of the classical signs of *inflammation in a tissue, the other three being *calor (heat), *rubor (redness), and *dolor (pain). The swelling of an inflamed area is due to the leakage from small blood vessels of clear protein-containing fluid, which accumulates between the cells.... tumor