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6. Observe the diagram above, which of the following answers is appropriate in terms of the name of the valve X and its role.

  • Bicuspid (mitral) valve providing a gateway for oxygenated blood to pass into the ventricle beneath it
  • Tricuspid valve providing a gateway for oxygenated blood to pass into the ventricle beneath it
  • Semilunar valve providing an exit for deoxygenated blood
  • Semilunar valve providing an exit for oxygenated blood

7. The diagram shows a blood vessel, it is

  • The pulmonary vein entering the right ventricle
  • The aorta leaving the left ventricle
  • The pulmonary artery leaving the right ventricle
  • The aorta leaving the right ventricle

8. What is the name of the cavity that the heart sits within

  • The cardiac cavity
  • The pleural cavity
  • The mediastinum
  • The cardiac notch

9. Define the term cardiac output, and give a typical volume

  • The amount of blood the heart pumps through the circulatory system in a minute. Approximately 6 to 8 ltrs.
  • The amount of blood the heart pumps through the circulatory system in a minute. Approximately 2 to 4 ltrs.
  • The amount of blood the heart pumps through the circulatory system in a minute. Approximately 4 to 8 ltrs.
  • The amount of blood the heart pumps through the circulatory system in a 30 minutes. Approximately 4 to 8 ltrs.

10. Mammals including humans have a double circulation, what does that mean?

  • The blood visits the heart twice on its journey through two circuits
  • Blood volume doubles as it passes through the heart
  • The mammalian blood vessels are double the length of other animals
  • The thickness of the cardiac muscle is at least two times thicker than other animals.

11. The hepatic portal vein

  • A vein that drains the large intestine carrying waste substances to the kidney for excretion
  • Is a vein draining the liver taking deoxygenated blood back to the right side of the heart
  • A vein carrying deoxygenated but nutrient rich blood from the small intestine to the liver for nutrient processing, before going to the heart
  • A vein that leaves the liver carrying oxygenated blood to vena cava of the heart

12. The fibres that run down the septum of the heart carrying the impulse initiated by the pacemakers are called

  • The chordae tendonae
  • The trabeculae carnae
  • The Bundle of His
  • The Purkinje fibres

13. The hepatic portal vein in the foetal circulation is

  • Not present as a connecting vein in the foetus
  • Helps the foetal gas exchange at the placenta
  • Longer than in the infant and adult
  • Forms a connection between the right and left atrium

14. The complete cardiac cycle duration is

  • 0.08 second
  • 0.8 minute
  • 0.8 second
  • 8 seconds

15. Capillaries are

  • Made up of a single layer of squamous epithelial cells with valves
  • Made up of multiple elastic layers of connective tissue
  • Made up of a single layer of squamous epithelial cells
  • Made up of very thin muscular tunica

16. The foramen ovale

  • Takes blood from the placenta to the vena cava
  • Forms a connection between the right and left atrium
  • An opening at the base of the mitral valve
  • Forms a connection between the aorta and the pulmonary vein

17. The heart is covered by a set of membranes called the

  • The pericardium
  • The cardio mater
  • The pia mater
  • The pleural membrane

18. Observe the diagram above, which of the following answers is appropriate in terms of the name of the vessel X and its role.

  • The pulmonary vein carrying deoxygenated blood from the body
  • The aorta carrying oxygenated blood to the body
  • The vena cava carrying deoxygenated blood from the body
  • The pulmonary vein carrying oxygenated blood from the lungs

19. The aorta leaves the

  • Left ventricle
  • Left atrium
  • Right atrium
  • Right ventricle

20. Most of the blood leaving the atria occurs because of

  • Open valves, atrial contraction, pressure exceeding that in ventricles and gravity
  • Gravity
  • Blood pressure exceeding that in ventricles, open valves and gravity
  • Atrial contraction