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.
Storage and release. Histamine is found in almost all bodily tissues, mainly stored inside the granules of mast cells, where it is bound to compounds such as heparin. Mast cells are abundant in tissues that are prone to injury such as the extremities and blood vessels.Blood cells called basophils also contain some granules that have histamine inside them. The plasma concentration of histamine is less than 1 mg/L, although it may be higher in patients who have asthma.he increased permeability of blood vessels allows immune cells and substances to migrate from the bloodstream, through the vessels and into the site where injury or infection has occurred. Leukocytes and blood plasma proteins can then begin the process of fighting infection and healing the tissue.