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.

New worksheetPractise online with hints

For teachers: free to print, copy and use in class. Every new worksheet has new values and its own answer key. A link to ExamProblems on your course page is appreciated.

Name: ____________________   Date: ____________

1.Easy

Which blood vessels have valves that prevent blood flowing backwards?

  1. ACapillaries
  2. BArteries
  3. CArterioles
  4. DVeins
2.Easy

The systolic blood pressure is the pressure in the arteries:

  1. AWhen the ventricles relax
  2. BWhen the ventricles contract
  3. CBetween two heartbeats, during diastole
  4. DWhen the atria contract
3.Easy

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

  1. A37 °C
  2. B36 °C
  3. C38.5 °C
  4. D35 °C
4.Medium

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

  1. AH zone
  2. BA band
  3. CI band
  4. DThe whole sarcomere
5.Medium

What is the main effect of vagus nerve stimulation on the heart?

  1. AIt constricts the coronary arteries
  2. BIt increases the heart rate
  3. CIt increases ventricular contractility strongly
  4. DIt slows the heart rate
6.Medium

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

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

In long-standing aortic stenosis, how does the left ventricle adapt?

  1. AThinning of the wall with dilation
  2. BAtrophy of the muscle due to less work
  3. CConcentric hypertrophy with a thicker wall
  4. DNo change because the valve is not part of the ventricle
8.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. BHigh pH, low bicarbonate and low PaCO₂
  3. CLow pH, high bicarbonate and high PaCO₂
  4. DLow pH, normal bicarbonate and high PaCO₂

Answer key

  1. 1. D · Veins
  2. 2. B · When the ventricles contract
  3. 3. A · 37 °C
  4. 4. B · A band
  5. 5. D · It slows the heart rate
  6. 6. B · Binding of one oxygen makes the next bind more easily
  7. 7. C · Concentric hypertrophy with a thicker wall
  8. 8. A · Low pH, low bicarbonate and low PaCO₂

Full step-by-step solutions: practise this topic on examproblems.com.