Human physiology worksheet with answers

Free printable Human physiology worksheet: 8 problems from easy to exam level, with an answer key. Print it or save it as a PDF.

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1.Easy

What is stroke volume?

  1. AThe volume of blood left in a ventricle after contraction
  2. BThe volume of blood in a ventricle at the end of filling
  3. CThe volume of blood pumped by the heart per minute
  4. DThe volume of blood ejected by a ventricle in one beat
2.Easy

Which type of white blood cell is the most numerous in healthy adult blood?

  1. ALymphocytes
  2. BMonocytes
  3. CEosinophils
  4. DNeutrophils
3.Easy

Which structure of the inner ear converts sound vibrations into nerve signals?

  1. ATympanic membrane
  2. BSemicircular canals
  3. CAuditory tube
  4. DCochlea
4.Medium

During which phase of the cardiac cycle are all four heart valves closed while ventricular pressure rises?

  1. AIsovolumetric contraction
  2. BAtrial systole
  3. CRapid filling
  4. DRapid ejection
5.Medium

Besides lowering glucose, insulin moves which ion into cells, an effect used to treat hyperkalaemia?

  1. APotassium
  2. BCalcium
  3. CChloride
  4. DSodium
6.Medium

Which hormone increases water reabsorption in the collecting ducts of the kidney?

  1. AAntidiuretic hormone (ADH)
  2. BParathyroid hormone
  3. CAldosterone
  4. DAtrial natriuretic peptide
7.Hard

A patient with diabetic ketoacidosis breathes deeply and rapidly. What pattern is expected on the blood gas?

  1. ALow pH, low bicarbonate and low PaCO₂
  2. BLow pH, high bicarbonate and high PaCO₂
  3. CLow pH, normal bicarbonate and high PaCO₂
  4. DHigh pH, low bicarbonate and low PaCO₂
8.Hard

Why does breathing 100% oxygen correct hypoxaemia from a true right-to-left shunt only poorly?

  1. APure oxygen damages haemoglobin
  2. BThe extra oxygen is all exhaled as CO₂
  3. CThe shunted blood never comes into contact with alveolar gas
  4. DShunted blood is already fully saturated

Answer key

  1. 1. D · The volume of blood ejected by a ventricle in one beat
  2. 2. D · Neutrophils
  3. 3. D · Cochlea
  4. 4. A · Isovolumetric contraction
  5. 5. A · Potassium
  6. 6. A · Antidiuretic hormone (ADH)
  7. 7. A · Low pH, low bicarbonate and low PaCO₂
  8. 8. C · The shunted blood never comes into contact with alveolar gas

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