The first line of immune defense is the skin and mucus membranes. Skin acts as a physical barrior, blocking pathogens from entering. Mucus wihin the nasal cavity blocks some of the pathogens from entering the body. Cilia also aid in protectiong by acting as a barrior as well. There is also mucus lining the bronchial tubes, which like other mucus, blocks pathogens.
Barriers, The Inflammation Process, and Antibodies.
Pathogens
Your skin is the first line of defense.
Non specific defenses against pathogens include intact skin, temperature, neutophils, macrophages, and natural kills cells.
They can fight them using white blood cells to create anti bodys.
The body's main defense barrier against microorganisms is the immune system. This system includes physical barriers like the skin and mucous membranes, as well as specialized cells and proteins that identify and destroy pathogens to prevent infections. Additionally, the body has inflammatory responses that help to contain and eliminate invading microorganisms.
Lysozymes
White
axons neurons , cells help protect the bodys defense system against infection ..auto-immune defiency ...also oxygen
Neutrophils
White blood cells
Macrophages, natural killer cells, and complement proteins participate in the body's second line of defense. These components help to identify and eliminate pathogens that have breached the first line of defense, which includes physical and chemical barriers like the skin and mucous membranes.