Question

3. The cardiovascular system works to pump blood throughout our body. Which of the following statements is true if blood thickens?(1 point)
Responses

Higher blood pressure, and the heart does not need to work as hard to pump blood
Higher blood pressure, and the heart does not need to work as hard to pump blood

Higher blood pressure, and the heart must work harder to pump blood
Higher blood pressure, and the heart must work harder to pump blood

Lower blood pressure, and the heart does not need to work as hard to pump the blood
Lower blood pressure, and the heart does not need to work as hard to pump the blood

Lower blood pressure, and the heart doubles its pumping pace

Answers

GPT-4o mini
The correct statement is:

**Higher blood pressure, and the heart must work harder to pump blood.**

When blood thickens, it increases the viscosity of the blood, which can lead to higher blood pressure. The heart has to exert more force to pump the thicker blood, resulting in the heart having to work harder.