lymphatic system

lymphatic system

this is the body’s sewage system; helps rid the body of toxins waste and other unwanted materials; absorbs fluid that is not absorbed in the veins, and filters the fluid in the circulatory system;

lymph

the fluids within the lymphatic vessels are called _

bone marrow and thymus

primary lymphatic organs:

spleen, tonsils, and lymph nodes

secondary lymphatic organs:

bone marrow

contains the hematopoietic stem cells responsible for producing RBCs, WBCs, and platelets

thymus

both endocrine and lymphatic organs, mainly lymphatic producing T-cells, a temporary organ that is present at birth, and upon reaching puberty, it will undergo gradual involution until it is replaced by fat

spleen

largest lymphatic organ in the body, there are two major regions the red and white pulp

tonsils

masses of lymphoid tissues located at the entrance to the pharynx where they are the 1st defense against pathogens entering through the mouth and nose

pharyngeal, palatine, tubal, lingual

4 types of tonsils

lymphnodes

These are small bean-shaped glands, cleanse the lymph and act as a site for T and B cell activation