Fri revision

I have muscular walls, and a small lumen.  Pump blood away from the heart

I have a large lumen, I have thin muscular walls, I pump blood towards the heart

Human blood vessels are

• artries, capillaries, and atria

• ventricles, atria and pulmonary veins

• capillaries, artries, and veins

• veins, artries, and aorta

These are one cell thick

These blood vessels contain valves

a component of blood that is a by-product of aerobic energy production

What component of blood would help to stop you from bleeding from a cut?

1)When you start exercising, the arterioles to the working muscles

One complete heartbeat

• ECG
• systole
• diastole
• cardiac cycle

The valve between the right atrium and right ventricle is known as the __________ valve.

• Atrioventricular

• Aortic

• Semilunar

• Tricuspid