The site of an injury like a scratch or a splinter initially becomes red and painful.In some instances a yellowish thickened fluid may be present at the injury site.Commonly called pus,this fluid is
A) blood plasma and the dead neutrophils,macrophages,and bacteria that have accumulated at the wound.
B) the surviving bacteria that have been successful in avoiding the innate immune response.
C) dead body cells collaterally killed by the activation of the complement system.
D) the coagulated cytoplasm and hemoglobin produced by the blood cells injured during the infection.

Question

Quizplus · Accepted Answer

The yellowish fluid present at the injury site is pus, which is formed due to the accumulation of dead neutrophils, macrophages, and bacteria at the wound. These cells and bacteria are engulfed and destroyed by the immune system as a part of the inflammatory response, resulting in the formation of pus. The fluid also contains blood plasma and other proteins that leak out of the blood vessels due to inflammation.

The Site of an Injury Like a Scratch or a Splinter