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

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

  1. AErythropoietin
  2. BThrombopoietin
  3. CAldosterone
  4. DRenin
2.Easy

Most homeostatic control systems in the body work by:

  1. ANegative feedback
  2. BFeed-forward only
  3. CRandom variation
  4. DPositive feedback
3.Easy

What is the functional unit of the kidney?

  1. ACollecting duct
  2. BNephron
  3. CRenal pyramid
  4. DGlomerulus
4.Medium

What does the QRS complex on an ECG represent?

  1. AVentricular repolarisation
  2. BAtrial repolarisation
  3. CVentricular depolarisation
  4. DAtrial depolarisation
5.Medium

Which cells in the stomach secrete hydrochloric acid?

  1. AG cells
  2. BParietal cells
  3. CGoblet cells
  4. DChief cells
6.Medium

Which receptor is stimulated when the patellar tendon is tapped in the knee-jerk reflex?

  1. AGolgi tendon organ
  2. BNociceptor
  3. CMuscle spindle
  4. DPacinian corpuscle
7.Hard

Why does a person with lactase deficiency get diarrhoea and bloating after drinking milk?

  1. ALactose damages the villi directly
  2. BMilk protein triggers an allergic reaction
  3. CLactose is absorbed too quickly and raises blood glucose
  4. DUndigested lactose draws water into the gut and is fermented by colonic bacteria
8.Hard

Spirometry shows reduced FEV1 and reduced FVC, with a normal or high FEV1/FVC ratio. What pattern is this?

  1. AAn obstructive pattern, as in emphysema or chronic bronchitis
  2. BAn obstructive pattern, as in asthma
  3. CA restrictive pattern, as in pulmonary fibrosis
  4. DA normal result in an older adult

Answer key

  1. 1. A · Erythropoietin
  2. 2. A · Negative feedback
  3. 3. B · Nephron
  4. 4. C · Ventricular depolarisation
  5. 5. B · Parietal cells
  6. 6. C · Muscle spindle
  7. 7. D · Undigested lactose draws water into the gut and is fermented by colonic bacteria
  8. 8. C · A restrictive pattern, as in pulmonary fibrosis

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