Circulatory system

How long does the circulatory system stretch up to in miles?

• 60,000

• 21,000

• 24,000

• 66,000

• 32,000

How many ounces of blood does the heart expel with each beat?

• 5

• 7

• 2

• 1.5

How many times does the heart beat in the lifetime of 75years?

• 2.5 billion

• 2.5 million

• 250,000

• 3.5 billion

Can the heart continue beating disconnected from the body?

• True

• False

What gas do we get through blood?

• Oxygen

• air

• Carbon dioxide

• smoke

White blood cells make up the ..... system.

Tunic adventita is the ..... layer of connective tissue.

What part of the circulatory system are the lungs.

• Resperation part

• pulmonary part

• cardiovascular part

• systemic part

Which of these are in the systemic part of the circulatory system?

• Blood cells

• portal vessels

• veins

• tissue

What is the use of platelets in the body

• Needed for immunity

• Needed for energy

• Needed for clotting

• Needed for digestion