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What is the bodys natural defense against infection?

The body's natural defense against infection primarily involves the immune system, which includes physical barriers like the skin and mucous membranes, as well as various immune cells such as white blood cells. These components work together to identify and eliminate pathogens like bacteria and viruses. Additionally, the body produces antibodies that specifically target and neutralize invaders, while inflammatory responses help to isolate and combat infections. Overall, this complex system provides a robust defense to maintain health and prevent disease.


When does the bodys second line of defense come into play?

The body's second line of defense, which includes inflammatory responses and phagocytic cells, comes into play when pathogens manage to breach the first line of defense (skin and mucous membranes). These responses help contain and eliminate the pathogens before they can cause harm.


What are your bodys first line defenses against pathogens in general?

Your skin is the first line of defense.


What is the name for blood that has most of its oxygen given to the bodys cells is called?

Deoxygenated blood, also referred to as oxygen-poor blood or venous blood. This blood is returning to the heart after delivering oxygen to the body's cells.


What is the bodys main defence barrier against microorgansism?

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.