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 hormone does the corpus luteum mainly secrete after ovulation?

  1. AProlactin
  2. BLuteinising hormone
  3. CProgesterone
  4. DFollicle-stimulating hormone
2.Easy

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

  1. APineal gland
  2. BAdrenal gland
  3. CPituitary gland
  4. DThyroid gland
3.Easy

Most homeostatic control systems in the body work by:

  1. AFeed-forward only
  2. BNegative feedback
  3. CRandom variation
  4. DPositive feedback
4.Medium

Where is the heart's natural pacemaker?

  1. APurkinje fibres
  2. BSinoatrial node
  3. CAtrioventricular node
  4. DBundle of His
5.Medium

Since action potentials are all-or-none, how does a neuron signal a stronger stimulus?

  1. ABy changing the neurotransmitter it releases
  2. BBy making each action potential longer
  3. CBy firing action potentials more often
  4. DBy making each action potential larger
6.Medium

What causes the first heart sound (S1)?

  1. ABlood filling the atria
  2. BClosure of the mitral and tricuspid valves
  3. CClosure of the aortic and pulmonary valves
  4. DOpening of the aortic valve
7.Hard

Which spirometry finding is typical of chronic obstructive pulmonary disease (COPD)?

  1. ANormal FEV1 with low FVC
  2. BFEV1/FVC ratio below 0.7
  3. CIncreased peak expiratory flow
  4. DFEV1/FVC ratio above 0.9 with low FVC
8.Hard

After a head injury, a patient passes large volumes of very dilute urine and plasma sodium rises. What is the most likely cause?

  1. AUncontrolled diabetes mellitus
  2. BLack of ADH release (cranial diabetes insipidus)
  3. CExcess aldosterone
  4. DExcess ADH release (SIADH)

Answer key

  1. 1. C · Progesterone
  2. 2. C · Pituitary gland
  3. 3. B · Negative feedback
  4. 4. B · Sinoatrial node
  5. 5. C · By firing action potentials more often
  6. 6. B · Closure of the mitral and tricuspid valves
  7. 7. B · FEV1/FVC ratio below 0.7
  8. 8. B · Lack of ADH release (cranial diabetes insipidus)

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