Lymph in Biological Definition

Immunology

... system are thymus , spleen , bone marrow , lymph vessels , lymph nodes and secondary lymphatic tissues such as ... only post-mortem during autopsy . However some lymph nodes, and secondary lymphatic tissues can be ...

Cancer

... or jaundice . Symptoms of metastasis (spreading) : enlarged lymph nodes , cough and hemoptysis , hepatomegaly (enlarged liver ), bone ... extent of the disease and whether there has been metastasis to regional lymph nodes . Staging determines the prognosis and the need for adjuvant ....

Apoptosis

... from a malignant mutation) or with foreign antigen produced as a consequence of a viral infection. After becoming activated, they migrate out of the lymph nodes in which they reside, proliferate, recognize the affected cells and commit them to programmed cell death. The receptors in immature B and T ...

B cell

... second exposure to the antigen for which they are specific. Humoral immunity (the creation of antibodies that circulate in blood plasma and lymph ) involves B cell activation . Cell activation can be gauged using the ELISPOT technique, which can determine the percentage of B cells that ...

Immune system

... material. It may be broken down into the adaptive immune system (only found in vertebrates [1] ), composed of four lymphoid organs ( thymus , lymph nodes , spleen and submucosal lymphoid nodules) and the group motile cells that are involved in the body's defense against foreign bodies. The term ...

Semen

... of semen, such as the spermatozoa as well as the seminal plasma, can cause immunosuppression in the body when introduced to the bloodstream or lymph . Evidence for this dates back to 1898 , when Elie Metchnikoff injected a guinea pig with its own and foreign guinea pig sperm, finding that an ...