Which of the following is the first to defend the body tissues against invaders?

Question

Quizplus · Accepted Answer

Phagocytes, such as neutrophils and macrophages, are the first line of defense against invaders. They engulf and digest foreign particles, including bacteria and viruses. T-cells and B-cells come into play when phagocytes are not able to eliminate the invaders. Antigens are molecules that activate the immune system, but they are not cells that defend the body tissues.

Which of the Following Is the First to Defend the Body