Word: bursa
(lookup in dictionary)
(lookup stats)
Dates: during 1970-1979
Sort By: most recent first
(reverse)
...other type of lymphocyte, the B-cell, undergoes differentiation, in chickens, at least, in an organ called the bursa of Fabricius. (Where that transformation takes place in man has not yet been positively determined, but it can be assumed that the human body contains an equivalent of the bursa.) B-cells are called the agents of humoral immunity because they synthesize antibodies that circulate freely in the blood. The antibodies, actually globular proteins, help the body resist disease-causing organisms. Both the B-cells and T-cells reside primarily in the body's lymphoid tissues, which are found under...