The answer is b) increased diameter of blood vessels.

Here's why:

a) Increased heart rate: This would actually increase blood pressure because the heart is pumping more frequently, pushing more blood through the arteries.

b) Increased diameter of blood vessels: This would decrease blood pressure. When the diameter of the blood vessels increases (a process called vasodilation), the pressure of the blood against the vessel walls decreases. This is because the same amount of blood has more space to flow through, reducing the force against the walls.

c) Increase in sympathetic stimulation to the heart: This would increase blood pressure. The sympathetic nervous system increases heart rate and constricts blood vessels, both of which increase blood pressure.

d) Increase in blood viscosity: This would also increase blood pressure. Viscosity refers to the thickness of the blood. The thicker the blood, the harder it is to pump through the vessels, increasing the pressure.

Question

The answer is b) increased diameter of blood vessels.

Here's why:

a) Increased heart rate: This would actually increase blood pressure because the heart is pumping more frequently, pushing more blood through the arteries.

b) Increased diameter of blood vessels: This would decrease blood pressure. When the diameter of the blood vessels increases (a process called vasodilation), the pressure of the blood against the vessel walls decreases. This is because the same amount of blood has more space to flow through, reducing the force against the walls.

c) Increase in sympathetic stimulation to the heart: This would increase blood pressure. The sympathetic nervous system increases heart rate and constricts blood vessels, both of which increase blood pressure.

d) Increase in blood viscosity: This would also increase blood pressure. Viscosity refers to the thickness of the blood. The thicker the blood, the harder it is to pump through the vessels, increasing the pressure.

Knowee AI · Accepted Answer

The answer is b) increased diameter of blood vessels.

Here's why:

a) Increased heart rate: This would actually increase blood pressure because the heart is pumping more frequently, pushing more blood through the arteries.

b) Increased diameter of blood vessels: This would decrease blood pressure. When the diameter of the blood vessels increases (a process called vasodilation), the pressure of the blood against the vessel walls decreases. This is because the same amount of blood has more space to flow through, reducing the force against the walls.

c) Increase in sympathetic stimulation to the heart: This would increase blood pressure. The sympathetic nervous system increases heart rate and constricts blood vessels, both of which increase blood pressure.

d) Increase in blood viscosity: This would also increase blood pressure. Viscosity refers to the thickness of the blood. The thicker the blood, the harder it is to pump through the vessels, increasing the pressure.

Q9. Which one of the following would result in a DECREASE in blood pressure?a) increased heart rateb) increased diameter of blood vesselsc) increase in sympathetic stimulation to the heartd) increase in blood viscosity

Question

Solution

Similar Questions

Upgrade your grade with Knowee