11 Multiple Choice 1 point Epinephrine is a hormone as well as a neurotransmitter. Which of the following is not a function of epinephrine? Decreased heart rate Increased breathing rate Increased rate of carbohydrate oxidation Dilation of pupils Clear my selection

The correct answer is **Decreased heart rate**.<br /><br />Epinephrine, also known as adrenaline, is associated with the "fight or flight" response. It prepares the body for action by:<br /><br />* **Increasing heart rate:** This pumps blood more quickly to muscles.<br />* **Increasing breathing rate:** This provides more oxygen for energy production.<br />* **Increasing the rate of carbohydrate oxidation:** This provides a readily available energy source.<br />* **Dilating pupils:** This improves vision.<br /><br />Therefore, *decreasing* heart rate is the opposite of what epinephrine does.<br />