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

What is normal core body temperature in an adult, approximately?

  1. A37 °C
  2. B35 °C
  3. C38.5 °C
  4. D36 °C
2.Easy

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

  1. AHypothalamus
  2. BCerebellum
  3. CMedulla oblongata
  4. DOccipital lobe
3.Easy

Exchange of gases and nutrients between blood and tissues happens mainly across the walls of:

  1. AVeins
  2. BArterioles
  3. CArteries
  4. DCapillaries
4.Medium

Which is a classic example of positive feedback in the body?

  1. AInsulin release after a meal
  2. BADH release when plasma osmolality rises
  3. CSweating when body temperature rises
  4. DOxytocin release during labour
5.Medium

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

  1. AGolgi tendon organ
  2. BNociceptor
  3. CMuscle spindle
  4. DPacinian corpuscle
6.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
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

Why does a person with lactase deficiency get diarrhoea and bloating after drinking milk?

  1. ALactose damages the villi directly
  2. BMilk protein triggers an allergic reaction
  3. CUndigested lactose draws water into the gut and is fermented by colonic bacteria
  4. DLactose is absorbed too quickly and raises blood glucose

Answer key

  1. 1. A · 37 °C
  2. 2. A · Hypothalamus
  3. 3. D · Capillaries
  4. 4. D · Oxytocin release during labour
  5. 5. C · Muscle spindle
  6. 6. C · By firing action potentials more often
  7. 7. B · Concentric hypertrophy with a thicker wall
  8. 8. C · Undigested lactose draws water into the gut and is fermented by colonic bacteria

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