In cyclooxygenase (COX) pathway of the arachidonic acid (AA') metabolism, which of the following products helps to promote the platelet aggregation and vasoconstriction?: (A) C5a, (B) Thromboxane A2, (C) Leukotriene B4, (D) C1 activators
Answer is B. C5a - is anaphylatoxin and chemotactic LTB4 - is chemotactic Arachidonic acid metabolites cyclooxygenase pathway