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

  1. AAuditory tube
  2. BTympanic membrane
  3. CCochlea
  4. DSemicircular canals
2.Easy

What is the main function of platelets?

  1. ACarrying carbon dioxide
  2. BBlood clotting
  3. CFighting infection
  4. DProducing antibodies
3.Easy

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

  1. ARenin
  2. BThrombopoietin
  3. CAldosterone
  4. DErythropoietin
4.Medium

Which hormone is released by the adrenal cortex in response to ACTH?

  1. ACortisol
  2. BAdrenaline
  3. CAldosterone, as the main response
  4. DThyroxine
5.Medium

How is the ejection fraction calculated?

  1. AEnd-systolic volume ÷ stroke volume
  2. BCardiac output ÷ heart rate
  3. CEnd-diastolic volume ÷ end-systolic volume
  4. DStroke volume ÷ end-diastolic volume
6.Medium

What does the QRS complex on an ECG represent?

  1. AVentricular repolarisation
  2. BAtrial depolarisation
  3. CAtrial repolarisation
  4. DVentricular depolarisation
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, normal bicarbonate and high PaCO₂
  3. CHigh pH, low bicarbonate and low PaCO₂
  4. DLow pH, high bicarbonate and high PaCO₂
8.Hard

Why does ketoacidosis typically develop in untreated type 1 diabetes but rarely in type 2?

  1. AType 1 patients have more glucagon receptors
  2. BType 2 patients cannot make ketones at all
  3. CEven low insulin levels suppress lipolysis and ketogenesis
  4. DKetones are only made in children

Answer key

  1. 1. C · Cochlea
  2. 2. B · Blood clotting
  3. 3. D · Erythropoietin
  4. 4. A · Cortisol
  5. 5. D · Stroke volume ÷ end-diastolic volume
  6. 6. D · Ventricular depolarisation
  7. 7. A · Low pH, low bicarbonate and low PaCO₂
  8. 8. C · Even low insulin levels suppress lipolysis and ketogenesis

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