Blood vessels,The Heart, Circulation, Coronary Heart Disease

• what are the 3 main types of blood vessels ?

  Arteries, veins, and capillaries
• what is the structure of arteries ?

  • thick muscular and elastic wall
  • narrow lumen
  • high pressure in arteries
• what is the structure of the veins ?

  • thin muscular wall
  • wide lumen
  • low pressure in veins
• what is the role of the veins ?

  carry deoxygenated blood (except for pulmonary veins) because they carry blood away from the heart
• what is the role of the arteries ?

  carry oxygenated blood (except pulmonary artery)because they carry blood to the heart
• what are valves for and where are they ?

  • preventing any backflow of blood
  • in the veins
• what is the structure of capilliaries ?

  • one cell thick
  • very narrow lumen
  • red blood cells in lumen
• label this diagram of the heart

  A) aorta

  B) pulmonary vein

  C) left atrium

  D) heart valve

  E) left ventricle

  F) pulmonary artery

  G) vena cava

  H) right atrium

  I) heart valve

  J) tendons and heart wall

  K) right ventricle

  
• what does the vena cava receive ?

  deoxygenated blood
• how many chambers is the heart divided into ?

  4
• which side of the heart receives oxygenated blood ?

  Left
• which side of the heart receives deoxygenated blood ?

  Right
• during exercise does our heart rate increase or decrease ?

  increase
• why does our heart rate continues at a fast rate after exercrise ?

  • adrenaline
  • carbon dioxide needs to be removed
  • oxygen needs to break down lactic acid
• what is an oxygen debt ?

  Accumulated deficit of oxygen in the body
• during vigorous exercise do we respire aerobically or anaerobically ?

  anaerobically
• when pulmonary is mentioned what does it refer to ?

  Lungs
• when hepatic is mentioned what does it refer to ?

  The liver
• when renal is mentioned what does it refer to ?

  Kidneys
• label this circulation system diagram

  A) pulmonary artery

  B) pulmonary vein

  C) vena cava

  D) heart

  E) hepatic vein

  F) aorta

  G) hepatic portal vein

  H) hepatic artery

  I) renal vein

  J) renal artery

  K) mesentric artery

  
• what are the risk factors of getting CHD ?

  • diet
  • obesity
  • lack of exercise
  • stress
  • smoking
  • genetics
  • age
  • sex
• how does CHD occur ?

  blockage to coronary arteries
• what may the coronary arteries becom blocked by ?

  plaque
• are coronary arteries inside or outside of the heart and what do they supply ?

  outside of the heart supplying blood
• what happens if you have a diet full of saturated fats ?

  could lead to CHD because there will be fatty deposits forming inside the arteries