Question

PLS help me with my biology HW, I forgot what the answer was!

Which of the following would increase blood pressure?

Low heart rate
Low blood volume
Dilated blood vessels
Contracted blood vessels

Answer 1

Contracted blood vessels

Step-by-step explanation:

The volume of blood is reduced as the vessels are more narrow due to the contraction, so less blood reaches the respiring tissues, causing the force of blood flow to increase as there is less space for normal blood flow to occur. This means that blood pressure increases.