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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Name: ____________________   Date: ____________

1.Easy

What is the typical resting membrane potential of a neuron?

  1. AAbout 0 mV
  2. BAbout −70 mV
  3. CAbout +70 mV
  4. DAbout −10 mV
2.Easy

Which hormone does the corpus luteum mainly secrete after ovulation?

  1. AProgesterone
  2. BLuteinising hormone
  3. CProlactin
  4. DFollicle-stimulating hormone
3.Easy

Which hormone, made mainly by the kidneys, stimulates red blood cell production?

  1. AThrombopoietin
  2. BErythropoietin
  3. CRenin
  4. DAldosterone
4.Medium

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

  1. APotassium
  2. BChloride
  3. CCalcium
  4. DSodium
5.Medium

What does the QRS complex on an ECG represent?

  1. AAtrial depolarisation
  2. BVentricular depolarisation
  3. CVentricular repolarisation
  4. DAtrial repolarisation
6.Medium

During contraction of a skeletal muscle sarcomere, which band stays the same length?

  1. AA band
  2. BI band
  3. CThe whole sarcomere
  4. DH zone
7.Hard

Why does a deep sea diver risk decompression sickness when surfacing quickly?

  1. AThe lungs collapse when the pressure falls
  2. BCarbon dioxide cannot leave the lungs fast enough
  3. CNitrogen dissolved at high pressure forms bubbles as the pressure falls
  4. DOxygen becomes toxic at the surface
8.Hard

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

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

Answer key

  1. 1. B · About −70 mV
  2. 2. A · Progesterone
  3. 3. B · Erythropoietin
  4. 4. A · Potassium
  5. 5. B · Ventricular depolarisation
  6. 6. A · A band
  7. 7. C · Nitrogen dissolved at high pressure forms bubbles as the pressure falls
  8. 8. B · The shunted blood never comes into contact with alveolar gas

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