Norepinephrine is Released from __________ Nerves,causing Heart Rate to ______

Question

Norepinephrine is released from __________ nerves,causing heart rate to ______.
A)parasympathetic,increase.
B)parasympathetic,decrease.
C)sympathetic,increase.
D)sympathetic,decrease.

Accepted Answer

Norepinephrine is released from sympathetic nerves, which are responsible for the "fight or flight" response. One of the effects of norepinephrine is to increase heart rate, which prepares the body for physical activity. Therefore, the correct answer is C - sympathetic, increase.