GENERAL HISTOLOGY

Detailed explanation-1: -The spleen is located in the upper left part of the belly under the ribcage. It helps protect the body by clearing worn-out red blood cells and other foreign bodies (such as germs) from the bloodstream. The spleen is part of the lymphatic system, which is an extensive drainage network.

Detailed explanation-2: -Collecting ducts: Lymphatic vessels empty the lymph into the right lymphatic duct and left lymphatic duct (also called the thoracic duct). These ducts connect to the subclavian vein, which returns lymph to your bloodstream.

Detailed explanation-3: -Your body makes normal red blood cells, but they are later destroyed. This may happen because of: Certain infections, which may be viral or bacterial. Medicines, such as penicillin, antimalarial medicines, sulfa medicines, or acetaminophen. Blood cancers.

Detailed explanation-4: -Lymphatic ducts return lymph to the blood circulation by draining lymph into the subclavian veins in the neck. Lymphatic vessels transport lymph to lymph nodes. These structures filter lymph of pathogens, such as bacteria and viruses. Lymph nodes also filter cellular waste, dead cells, and cancerous cells.