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

What is the functional unit of the kidney?

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

Which mineral is an essential part of haemoglobin?

  1. ACalcium
  2. BIodine
  3. CZinc
  4. DIron
3.Easy

Which part of the brain regulates body temperature, hunger and thirst?

  1. ACerebellum
  2. BMedulla oblongata
  3. COccipital lobe
  4. DHypothalamus
4.Medium

What is anatomical dead space?

  1. AThe air that stays in the lungs after full exhalation (residual volume)
  2. BThe volume of the conducting airways where no gas exchange happens
  3. CThe space between the two pleural layers
  4. DAlveoli that have collapsed completely
5.Medium

What is the main effect of aldosterone on the kidney?

  1. AWater reabsorption by inserting aquaporins only
  2. BIncreased filtration in the glomerulus
  3. CSodium reabsorption and potassium secretion in the distal nephron
  4. DGlucose reabsorption in the proximal tubule
6.Medium

What is the main function of pulmonary surfactant?

  1. ATo carry oxygen across the alveolar wall
  2. BTo kill bacteria in the airways
  3. CTo trap dust in the bronchi
  4. DTo reduce surface tension in the alveoli
7.Hard

At the start of a fever, a patient shivers and feels cold even though body temperature is rising. Why?

  1. AThe thermoreceptors in the skin are destroyed
  2. BPyrogens raise the hypothalamic set point above the current body temperature
  3. CSweating has already cooled the body too much
  4. DThe body has lost its ability to produce heat
8.Hard

A patient hyperventilating during a panic attack has tingling fingers. What would the arterial blood gas most likely show?

  1. AHigh pH and high bicarbonate
  2. BHigh pH and low PaCO₂
  3. CLow pH and low bicarbonate
  4. DLow pH and high PaCO₂

Answer key

  1. 1. B · Nephron
  2. 2. D · Iron
  3. 3. D · Hypothalamus
  4. 4. B · The volume of the conducting airways where no gas exchange happens
  5. 5. C · Sodium reabsorption and potassium secretion in the distal nephron
  6. 6. D · To reduce surface tension in the alveoli
  7. 7. B · Pyrogens raise the hypothalamic set point above the current body temperature
  8. 8. B · High pH and low PaCO₂

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