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

Which hormone lowers blood glucose?

  1. AGlucagon
  2. BInsulin
  3. CAdrenaline
  4. DCortisol
2.Easy

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

  1. ASemicircular canals
  2. BCochlea
  3. CAuditory tube
  4. DTympanic membrane
3.Easy

What is normal core body temperature in an adult, approximately?

  1. A35 °C
  2. B37 °C
  3. C36 °C
  4. D38.5 °C
4.Medium

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

  1. ARapid filling
  2. BRapid ejection
  3. CIsovolumetric contraction
  4. DAtrial systole
5.Medium

What is the normal pH range of arterial blood?

  1. A6.80 to 7.00
  2. B7.50 to 7.65
  3. C7.35 to 7.45
  4. D7.00 to 7.20
6.Medium

Why is the oxygen–haemoglobin dissociation curve S-shaped?

  1. ABinding of one oxygen makes the next bind more easily
  2. BRed cells change size as they take up oxygen
  3. CHaemoglobin can bind only one oxygen molecule
  4. DOxygen dissolves better in plasma at high partial pressure
7.Hard

Constriction of the efferent arteriole of a glomerulus, with the afferent arteriole unchanged, tends to:

  1. ARaise glomerular capillary pressure and GFR
  2. BStop filtration completely
  3. CHave no effect on GFR at all
  4. DLower glomerular capillary pressure and GFR
8.Hard

Hodgkin and Huxley's classic studies of the ionic basis of the action potential used which preparation?

  1. AThe frog sciatic nerve–muscle preparation
  2. BThe squid giant axon
  3. CCultured human cortical neurons
  4. DThe cat spinal cord

Answer key

  1. 1. B · Insulin
  2. 2. B · Cochlea
  3. 3. B · 37 °C
  4. 4. C · Isovolumetric contraction
  5. 5. C · 7.35 to 7.45
  6. 6. A · Binding of one oxygen makes the next bind more easily
  7. 7. A · Raise glomerular capillary pressure and GFR
  8. 8. B · The squid giant axon

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