What specific host defenses make it difficult for a pathogen to avoid destruction once they have gained entry into the human body? (Select all that apply)

Question

Quizplus · Accepted Answer

A) Circulating antibodies recognize and bind to specific antigens on pathogens, marking them for destruction. B) Phagocytic cells, such as macrophages and neutrophils, engulf and destroy pathogens. C) Cytotoxic T cells directly attack and kill cells that have been infected by viruses or have become cancerous, helping to eliminate the infection. D) The skin and mucous membranes act as physical barriers to prevent the entry of pathogens into the body, so they are not involved in destroying pathogens once they have gained entry.

What Specific Host Defenses Make It Difficult for a Pathogen