Vacuum phenomenon (in the nucleus pulposis of the intervertebral disc below the retrolisthesis), This is a sign of tearing of the disc cartilage. Reduction of disc height with corresponding loss of the disc space, Marginal sclerosis (more dense due to more mechanical stress) of the adjacent vertebral bodies,
T cells, which secrete antibodies. c. macrophages, which produce histamines. d. B cells, which react with antigen-MHC complexes. e. T cells, which react with antigen-MHC complexes. ____ 114. You had a cold last month and you caught another one this month from your daughter.
To answer that question, first you have to know what histamines are. In the most basic sense, histamines are chemicals produced during any allergic response. When an allergen triggers the immune system, mast cells (a type of white blood cells) release histamines as part of the inflammatory immune reaction.o answer that question, first you have to know what histamines are. In the most basic sense, histamines are chemicals produced during any allergic response. When an allergen triggers the immune system, mast cells (a type of white blood cells) release histamines as part of the inflammatory immune reaction.