Johann took some medication for his flu symptoms.Later,Johann began to feel a little faint because the medication caused his heart to beat more slowly and his blood pressure to fall.What system was likely activated by the medication

A)  parasympathetic 
B)  sympathetic 
C)  somatic 
D)  central

The parasympathetic nervous system is responsible for slowing down heart rate and reducing blood pressure, which indicates that the medication likely activated this system. The sympathetic nervous system is responsible for increasing heart rate and blood pressure, so it is unlikely to be the correct answer. The somatic nervous system controls voluntary movement, and the central nervous system refers to the brain and spinal cord, neither of which are directly responsible for regulating heart rate or blood pressure.