Question

If you cut your knee, pus, which is caused by _____, may form. medicinal material excreted by macrophages the death of macrophages pathogens trying to infect the area blood cells losing their hemoglobin

Answer 1

If you cut your knee, pus, which is caused by the death of macrophages may form. 

Answer 2

Answer:

Death of macrophages

Explanation:

• Pus is formed at a site of infection and consists of a protein-rich fluid which is often yellowish white in color.
• This is caused because the immune cells that reach the site of infection, die and build up in the area.
• These immune cells include neutrophils and macropahges.
• When there is an infection, these neutrophils and macrophages reach the site of injury as they are a part of the innate immune system to control the infection and then when they die and if not cleared from the site of the infection, then a build-up of pus occurs.