Final answer:
The student's question concerns the processes of wound repair and infection control, which involve both the innate and adaptive immune responses triggered through inflammation and tissue healing stages, potentially requiring medical intervention when the body's defense mechanisms are insufficient.
Step-by-step explanation:
The student's question relates to the body's responses to wound repair and infection control. When skin injuries occur, a process of healing is triggered which involves several stages, starting with the formation of a blood clot. This is followed by an inflammation response of the innate immune system, which serves to halt the spread of infection and begin tissue repair, producing symptoms such as redness, swelling, and warmth.
In addition to the innate immune response, an adaptive immune response is also activated. This includes transporting antigens to lymph nodes to develop a response against the pathogens. Accumulation of dead cells and pathogens can form pus at the injection site, which is a sign that the immune system is responding to the infection. Surgical interventions, like removal of infected tissue, may be necessary when the body's defenses are not enough to control the infection.