A hypodermic injection of epinephrine would a. increase heart rate, increase blood pressure, dilate the bronchioles of the lungs, and increase digestive activity, b. decrease heart rate, decrease blood pressure, constrict the bronchioles, and increase digestive activity, c. decrease heart rate, increase blood pressure, constrict the bronchioles, and decrease digestive activituy, d. increase heart rate, increase blood pressure, dilate the bronchioles, and decrease digestive activity.

Video transcript

Welcome back everybody. Our next question says, which of the following is not likely to be caused by an adrenaline injection in your left upper arm. A increased heart rate. B increased blood pressure, C decrease glycogenolysis or d increase beta oxidation. Well, to evaluate this, we want to remember that adrenaline is the major hormone of the sympathetic nervous system and therefore, is primarily responsible for the flight or fight response. So anything that triggers you would think through being helpful in that response. So when we look at our answer choices, uh a increased heart rate and increased blood pressure definitely caused by adrenaline injection. A rise in adrenaline. But we get a choice c decrease glycogenolysis. Well, glycogenolysis is the biochemical pathway where glycogen is broken down into glucose, one phosphate and glucose. So it breaks down glycogen to produce glucose and stimulating glucose production. Of course, would be extremely helpful if you're trying to prepare for a major burst of energy here. So it makes sense that an adrenaline injection should lead to increased glycogenolysis, not decreased. And indeed, that is our correct answer since this is not likely to be caused by an adrenaline injection and finally choice d increase beta oxidation, beta oxidation is a process by which fatty acid molecules are broken down, generating A T P. And of course, that also useful in a fight or flight situation. So adrenaline does indeed cause increased beta oxidation. So that's not our answer. So again, which of these following things not likely to be caused by an adrenaline injection. Choice c decreased glycogenolysis. See you in the next video.