Question

question 15
mast cells:
a synthesize antibodies that react against foregin substances
b conduct nerve impulses to higher brain centers
c store fat
d none of the above
e release histamine and heparin

Explanation:

Mast cells are part of the immune system. They are known for releasing histamine (which causes vasodilation and increased vascular permeability) and heparin (an anticoagulant). Antibodies are synthesized by plasma cells (not mast cells), nerve impulses are conducted by neurons, and fat - storing cells are adipocytes.

Answer:

E. release histamine and heparin