Predict the expected change to blood flow should norepi act on arteries of the abdominal cavity?


A. Blood flow increases
B. Blood flow decreases
C. Blood flow stays the same but pressure increases
D. Blood flow stays the same but speed decreases
E. None of the Above

In order to predict the expected change in blood flow if norepinephrine (norepi) acts on arteries of the abdominal cavity, we need to understand the role of norepinephrine and its effects on blood vessels.

Norepinephrine is a stress hormone that acts as a vasoconstrictor, meaning it causes the smooth muscles in blood vessel walls to contract, which leads to a narrowing of the blood vessels. This narrowing can result in increased resistance to blood flow.

Now let's apply this knowledge to the given scenario. If norepinephrine acts on the arteries of the abdominal cavity, it would cause vasoconstriction in these blood vessels. As a result, the diameter of the arteries would decrease, leading to a reduction in blood flow.

Therefore, based on the information provided, the expected change to blood flow should be a decrease. The correct answer would be B. Blood flow decreases.