Which two body systems are known for filtering blood of pathogens and fighting infections?

Which two body systems are known for filtering blood of pathogens and fighting infections?

• A. Excretory and Immune
• B. Immune and Lymphatic
• C. Muscular and Circulatory
• D. Nervous and Respiratory

Answer: (B)

The immune and lymphatic systems both play crucial roles in filtering blood of pathogens and fighting infections. The immune system is responsible for identifying and responding to pathogens such as bacteria, viruses, and other foreign invaders. It produces specialized cells and antibodies that target these pathogens to neutralize and eliminate them from the body. On the other hand, the lymphatic system is interconnected with the immune system as it transports lymph, a fluid containing infection-fighting white blood cells, throughout the body. It includes structures such as the lymph nodes, which filter lymph and serve as sites where immune responses can be activated. This collaboration between the immune and lymphatic systems is essential for maintaining the body's defense against infections and ensuring that pathogens are removed effectively. The other options do not involve both filtering blood and fighting infections in the same manner as the immune and lymphatic systems. The excretory system primarily deals with waste removal and regulation of fluids, while the muscular and circulatory systems have different functions related to movement and blood transport, respectively. Additionally, the nervous and respiratory systems focus on transmitting signals and gas exchange, which do not directly correlate with the body's immune response to infections.

The immune and lymphatic systems both play crucial roles in filtering blood of pathogens and fighting infections. The immune system is responsible for identifying and responding to pathogens such as bacteria, viruses, and other foreign invaders. It produces specialized cells and antibodies that target these pathogens to neutralize and eliminate them from the body.

On the other hand, the lymphatic system is interconnected with the immune system as it transports lymph, a fluid containing infection-fighting white blood cells, throughout the body. It includes structures such as the lymph nodes, which filter lymph and serve as sites where immune responses can be activated. This collaboration between the immune and lymphatic systems is essential for maintaining the body's defense against infections and ensuring that pathogens are removed effectively.

The other options do not involve both filtering blood and fighting infections in the same manner as the immune and lymphatic systems. The excretory system primarily deals with waste removal and regulation of fluids, while the muscular and circulatory systems have different functions related to movement and blood transport, respectively. Additionally, the nervous and respiratory systems focus on transmitting signals and gas exchange, which do not directly correlate with the body's immune response to infections.