Fact 1: Blood pressure is highest in arteries and lowest in veins.

Fact 2: What is Blood Pressure Blood pressure is the pressure on the blood vessel walls.

Given the two facts above, answer the question "pressure in what is highest in arteries and lowest in veins?" with the following options: 
- Joules
 - Decibels
 - It decreases
 - protein walls
 - skin tags
 - forces
 - vessel walls
 - cell walls


 

       vessel walls  