True or false about circulation

Exercise and reference answers

Questions

1. Statement is true

   Yes

   Statement

   Arteries carry blood away from the heart.

2. Statement is true

   No

   Statement

   Veins withstand higher pressure than arteries.

3. Statement is true

   Yes

   Statement

   Pulmonary veins carry oxygenated blood.

4. Statement is true

   No

   Statement

   Vasodilation raises blood pressure.

5. Statement is true

   Yes

   Statement

   Limb veins often contain valves.

Instructions

Decide whether each statement is true or false.

Explanation