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 ion triggers contraction by binding to troponin in skeletal muscle?

  1. ACalcium
  2. BChloride
  3. CPotassium
  4. DSodium
2.Easy

Which hormones are the main regulators of the body's basal metabolic rate?

  1. AMelatonin and serotonin
  2. BOestrogen and progesterone (ovarian steroids)
  3. CInsulin and glucagon
  4. DThyroid hormones (T3 and T4)
3.Easy

Which hormone is mainly produced by the testes?

  1. AProgesterone
  2. BTestosterone
  3. CProlactin
  4. DOxytocin
4.Medium

Where is the heart's natural pacemaker?

  1. AAtrioventricular node
  2. BSinoatrial node
  3. CPurkinje fibres
  4. DBundle of His
5.Medium

Which ABO blood group has both anti-A and anti-B antibodies in the plasma?

  1. AGroup AB
  2. BGroup A
  3. CGroup B
  4. DGroup O
6.Medium

Which protein forms the mesh that stabilises a blood clot?

  1. AAlbumin
  2. BThrombin
  3. CCollagen
  4. DFibrin
7.Hard

A patient has taken high-dose prednisolone for a year. What is the state of the hypothalamic–pituitary–adrenal axis?

  1. AACTH is normal and cortisol production is increased
  2. BACTH is high and the adrenal cortex is enlarged
  3. CThe adrenal medulla has stopped making adrenaline and noradrenaline
  4. DACTH is suppressed and the adrenal cortex has atrophied
8.Hard

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

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

Answer key

  1. 1. A · Calcium
  2. 2. D · Thyroid hormones (T3 and T4)
  3. 3. B · Testosterone
  4. 4. B · Sinoatrial node
  5. 5. D · Group O
  6. 6. D · Fibrin
  7. 7. D · ACTH is suppressed and the adrenal cortex has atrophied
  8. 8. C · In the lungs

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