Cardiovascular system

How many Litres of blood are pumped every day?

• 5,000

• 6,000

• 7,000

• 8,000

What makes up the cardiovascular system?

• Blood vessels

• Blood

• Muscles

• Heart

What is the main function of the CV system?

• Ensure sufficient supply of CO2 and nutrients and get rid of oxygen as a toxic by product

• Ensure sufficient supply of oxygen and CO2 to the working muscles

• Ensure sufficient supply of blood and CO2

• Ensure sufficient supply of oxygen and nutrients and get rid of CO2 as a toxic by product

How does thermoregulation occur?

• Dilation of the heart and blood vessels

• Wearing a coat when its cold.

• Dilation of Peripheral blood vessels

• Constriction of blood vessels when cold

Which blood vessels carry blood away from the heart?

• Arteries

• Veins

• Capillaries

• Venuoles

Which blood vessels carry blood back to the heart?

• Arteries

• Veins

• Capillaries

• Vena Cava

How are arteries and veins similar?

• They are 1 cell thick

• They both transport blood

• They have 3 layers of tissue

• They both contain valves

What is the difference between arteries and veins?

• Arteries contain valves

• Vein contain valves

• The tunica media is thicker in the artery

• The tunica media is thicker in the vein

What does smooth muscle contraction do to the blood vessels?

• Change the diameter to increase Carbon dioxide transport

• Slow blood down through the blood vessels

• Change the diameter to redistribute blood where needed

• Make blood move faster through the blood vessels

Tags

NGSS.HS-LS1-3

Which blood vessels carry oxygen to the cardiac muscle of the heart?

• Coronary blood vessels

• Cardiac blood vessels

• Smooth blood vessels

• Pulmonary blood vessels