Video 2: Understanding Blood Vessels and Blood Pressure

How long would your blood vessels be if lined up end to end?

• 75,000 kilometers

• 95,000 kilometers

• 50,000 kilometers

• 100,000 kilometers

What is the primary function of blood vessels?

• To filter blood

• To produce blood cells

• To store blood

• To deliver oxygen and nutrients to tissues

When is blood pressure at its highest?

• When you are eating

• During systole

• During diastole

• When you are sleeping

What is considered a normal blood pressure reading?

• Less than 120 over 80

• 140 over 90

• 150 over 95

• 130 over 85

Which of the following can increase blood pressure?

• Low-salt diet

• Adequate sleep

• High-salt diet

• Regular exercise

What hormone is released during the fight or flight response that affects blood pressure?

• Epinephrine

• Insulin

• Melatonin

• Glucagon

What condition is characterized by the buildup of plaque in the arteries?

• Diabetes

• Hypertension

• Atherosclerosis

• Anemia

What can happen if a plaque in an artery ruptures?

• A blood clot forms

• The artery expands

• Blood flow increases

• The artery heals immediately

What medical procedure involves inflating a balloon to open a clogged blood vessel?

• Endoscopy

• Stent placement

• Bypass surgery

• Angioplasty

How many times does a typical healthy heart beat in an average lifetime?

• 500 million times

• 1 billion times

• 2.5 billion times

• 3 billion times