Circulatory System (Bill Nye)

What is the function of the heart?

• To filter waste products

• To pump blood through the body

• To produce red blood cells

• To carry oxygen to the lungs

What are the three types of blood vessels?

• Capillaries, capillaries, and capillaries

• Veins, veins, and veins

• Arteries, veins, and capillaries

• Arteries, arteries, and arteries

What is the purpose of capillaries?

• To connect arteries to veins

• To pump blood to the heart

• To carry oxygen to the lungs

• To filter waste products

How many red blood cells are there in the body?

• 200 billion

• 25 trillion

• 25 billion

• 5 liters

What is the average heart rate at rest?

• 200 beats per minute

• 140 beats per minute

• 70 beats per minute

• 35-40 seconds per trip

What happens to blood pressure when arteries and veins are squeezed?

• Blood pressure increases

• Blood pressure decreases

• Blood pressure remains the same

• Blood pressure stops

What is the purpose of white blood cells?

• To filter waste products

• To pump blood

• To carry oxygen

• To fight infection

How often does the heart beat in a lifetime?

• Five liters

• 35-40 seconds per trip

• Four months

• Two billion times

What is the purpose of exercise for the heart?

• To filter waste products

• To produce red blood cells

• To carry oxygen to the lungs

• To make it stronger

What is the average amount of blood in the body?

• Five liters

• 200 billion

• 25 trillion

• 25 billion