Heart

• What is plasma in the blood

  Yellow liquid that carries blood cells, proteins and dissolved substances around the body
• What is an artery

  Blood vessel type that carries blood from the heart to other parts of the body
• What is a vein

  Blood vessel type that carries blood from the organs back to the heart
• What are capillaries

  The blood vessel type that is found within organs linking arteries and veins
• Is blood oxygenated in arteries

  Yes
• Name the vessels that supply oxygen to the heart muscles

  Coronary arteries
• Name the Large vessel that brings deoxygenated blood back to the heart

  vena cava
• Name the upper chambers of the heart

  Atria
• Name the lower chambers of the heart

  ventricles
• Name the vessel that brings deoxygenated blood from the heart to the lungs

  Pulmonary artery
• name the vessel that brings oxygenated blood from the lungs to the heart

  Pulmonary vein
• Which side of the heart has deoxygenated blood

  Right
• Describe blood flow as atria of the heart contract

  Blood flows from atria down to ventricles
• Name the large vessel that brings oxygenated blood out of the heart to the body

  Aorta
• Why is the muscle wall of the left ventricle thicker than the right ventricle

  To generate more pressure to force blood all around the body
• What is the function of the heart valves

  Prevent backflow of blood
• What can be used to replace a damaged heart valve

  Biological or mechanical valves
• State one adaptation of the lungs for efficient gas exchange

  Lots of alveoli to increase surface area.
• Why is it important for the lungs to have a rich blood supply

  Maintain steep concentration gradient for efficient diffusion