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 hormone raises blood calcium levels?

  1. AInsulin
  2. BParathyroid hormone
  3. CCalcitonin
  4. DThyroxine
2.Easy

Which gland is often called the "master gland" because it controls many other endocrine glands?

  1. APineal gland
  2. BThyroid gland
  3. CAdrenal gland
  4. DPituitary gland
3.Easy

Most homeostatic control systems in the body work by:

  1. ARandom variation
  2. BFeed-forward only
  3. CNegative feedback
  4. DPositive feedback
4.Medium

Besides lowering glucose, insulin moves which ion into cells, an effect used to treat hyperkalaemia?

  1. ACalcium
  2. BPotassium
  3. CChloride
  4. DSodium
5.Medium

Where is the heart's natural pacemaker?

  1. AAtrioventricular node
  2. BPurkinje fibres
  3. CSinoatrial node
  4. DBundle of His
6.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
7.Hard

In the renin–angiotensin–aldosterone system, where is angiotensin I mainly converted to angiotensin II?

  1. AIn the kidneys' juxtaglomerular cells
  2. BIn the liver
  3. CIn the lungs
  4. DIn the adrenal cortex
8.Hard

A patient's arterial blood gas shows pH 7.30, PaCO₂ 7.8 kPa (59 mmHg) and normal bicarbonate. What is the most likely disturbance?

  1. ACompensated metabolic alkalosis
  2. BAcute respiratory acidosis
  3. CRespiratory alkalosis
  4. DMetabolic acidosis

Answer key

  1. 1. B · Parathyroid hormone
  2. 2. D · Pituitary gland
  3. 3. C · Negative feedback
  4. 4. B · Potassium
  5. 5. C · Sinoatrial node
  6. 6. D · It slows the heart rate
  7. 7. C · In the lungs
  8. 8. B · Acute respiratory acidosis

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