The remaining one of the four branches, the ramus communicants, goes to the ganglionic chain and becomes part of the sympathetic system. Platelets comprise alpha granules and dense granules, which when stimulated launch development factors and cytokines. Note: Calcium gluconate is the antidote should hypermagnesemia be evidenced by depressed deep tendon refiexes or respiratory despair and hypotension (late sign) women's health clinic edinburgh effective 2 mg ginette-35.