MICROANATOMY

Detailed explanation-1: -The spleen acts as a filter. It weeds out old and damaged cells and helps control the amount of blood and blood cells that circulate in the body. The spleen also helps get rid of germs. It contains white blood cells called lymphocytes and macrophages.

Detailed explanation-2: -Lymph fluid is carried to the lymph nodes by lymphatic vessels. The lymph nodes filter out harmful substances and waste products. They also contain immune cells called lymphocytes that destroy cancer cells and bacteria. The filtered fluid is then returned to the blood circulation.

Detailed explanation-3: -Three impurities that lymph nodes filter from the lymph. Carbon, cancer cells, and pathogens.

Detailed explanation-4: -The medullary sinus drains the lymph into the efferent lymphatic vessels. The primary function of lymph nodes is filtering interstitial fluid collected from soft tissues and eventually returning it to the vascular system.