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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1.Easy

Which pituitary hormone stimulates the thyroid gland?

  1. AAdrenocorticotropic hormone (ACTH)
  2. BThyroid-stimulating hormone (TSH)
  3. CLuteinising hormone (LH)
  4. DGrowth hormone (GH)
2.Easy

Where is most of the nutrient absorption in the digestive tract?

  1. AStomach
  2. BSmall intestine
  3. COesophagus
  4. DLarge intestine
3.Easy

Which structure of the inner ear converts sound vibrations into nerve signals?

  1. ATympanic membrane
  2. BSemicircular canals
  3. CCochlea
  4. DAuditory tube
4.Medium

Which receptor is stimulated when the patellar tendon is tapped in the knee-jerk reflex?

  1. AGolgi tendon organ
  2. BPacinian corpuscle
  3. CMuscle spindle
  4. DNociceptor
5.Medium

The Frank–Starling mechanism describes that:

  1. AHeart rate rises when arterial blood pressure falls suddenly
  2. BContractility falls when temperature rises
  3. CThe atria contract after the ventricles
  4. DStroke volume rises when ventricular filling increases
6.Medium

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

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

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

  1. ANo change because the valve is not part of the ventricle
  2. BConcentric hypertrophy with a thicker wall
  3. CAtrophy of the muscle due to less work
  4. DThinning of the wall with dilation
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. BExcess aldosterone
  3. CExcess ADH release (SIADH)
  4. DLack of ADH release (cranial diabetes insipidus)

Answer key

  1. 1. B · Thyroid-stimulating hormone (TSH)
  2. 2. B · Small intestine
  3. 3. C · Cochlea
  4. 4. C · Muscle spindle
  5. 5. D · Stroke volume rises when ventricular filling increases
  6. 6. C · Binding of one oxygen makes the next bind more easily
  7. 7. B · Concentric hypertrophy with a thicker wall
  8. 8. D · Lack of ADH release (cranial diabetes insipidus)

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