B. Spleen
in the human immune system the main function of the is filtering blood
spleen
The lymphatic system is sometimes called the secondary immune system, as it helps to fight infection by filtering out foreign material such as bacteria.The primary immune system is of course the white blood cells in the blood itself, which identify and attack foreign bodies directly.
spleen
The lymphatic system works alongside the circulatory system to help maintain fluid balance in the body. It collects excess fluid and proteins that leach out of blood vessels and returns them to the bloodstream. The lymphatic system also plays a key role in immune function by transporting white blood cells and filtering out harmful substances.
The lymphatic system transports waste and pathogens away from tissues and helps support the immune system by filtering and removing harmful substances. Lymph fluid contains infection-fighting white blood cells that help defend the body against pathogens. The lymphatic system plays a crucial role in maintaining overall immune support and function.
blood runs up the lumbar and back
Spleen
Spleen
If the spleen function is lost, the immune system would be primarily affected. The spleen plays a crucial role in filtering blood, removing old or damaged red blood cells, and producing antibodies to help fight infections. Its loss could decrease the body's ability to effectively fight off bacteria and other pathogens.
The spleen is not part of the digestive system because it does not produce digestive enzymes or play a direct role in breaking down food. Instead, the spleen is involved in filtering blood, storing red blood cells, and assisting the immune system by producing antibodies.
The spleen does not belong, as it is part of the immune system responsible for filtering the blood and storing blood cells, while the thyroid gland, thymus, and lymph nodes are all parts of the endocrine and lymphatic systems.