Immune

The spleen is the largest lymphoid organ, approximately 12 cm long and 150 to 200 grams, located in the left upper quadrant protec...

The lymphatic system returns approximately 3 liters of interstitial fluid to the bloodstream daily, preventing edema. Lymph capill...

The tonsils are lymphoid tissue at the entrance of the throat pharynx, forming Waldeyer ring. Palatine tonsils the commonly remove...

The appendix vermiformis is a worm shaped tube approximately 8 to 10 cm long attached to the cecum at the beginning of the large i...

Bone marrow is the soft tissue filling the internal cavities of bones and is the main site of blood cell production, a process cal...

Lymph nodes are small, bean shaped organs distributed along the lymphatic vessels, and the body contains several hundred of them, ...

The thymus is a soft, two lobed lymphoid organ in the upper front part of the chest. It is relatively large in infancy and childho...

Lymph is the clear to whitish fluid that flows through the lymphatic system. It begins as interstitial fluid, the fluid that leaks...