Immune function refers to the body's ability to protect itself from infections, diseases, and foreign substances by recognizing and responding to pathogens. It involves a complex network of cells, tissues, and organs working together to maintain homeostasis and prevent illness.

Immune Function

Immune function

body's ability

Infections occur when harmful microorganisms, such as bacteria, viruses, fungi, or parasites, invade the body, multiply, and cause disease or damage. The body's immune response is crucial in fighting infections, but the effectiveness of this response can vary based on the pathogen and the individual's health status.

infections

diseases

foreign substances

recognizing and responding

Pathogens are microorganisms, such as bacteria, viruses, fungi, and parasites, that cause diseases in their hosts. Understanding the mechanisms of infection and transmission is crucial for developing effective prevention and treatment strategies.

pathogens

complex network

cells

tissues

organs

Homeostasis is the physiological process by which biological systems maintain stability and equilibrium in response to changing external conditions. It is essential for the survival of organisms, enabling them to regulate internal environments such as temperature, pH, and ion concentrations to ensure optimal functioning.

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