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 blood vessels have valves that prevent blood flowing backwards?

  1. AArterioles
  2. BArteries
  3. CVeins
  4. DCapillaries
2.Easy

What is the liquid part of blood in which the cells are suspended called?

  1. ALymph
  2. BPlasma
  3. CInterstitial fluid
  4. DCytoplasm
3.Easy

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

  1. ASemicircular canals
  2. BTympanic membrane
  3. CCochlea
  4. DAuditory tube
4.Medium

Why does glucose appear in the urine in uncontrolled diabetes mellitus?

  1. AThe filtered load exceeds the tubular transport maximum
  2. BThe collecting duct actively secretes glucose
  3. CThe glomerulus stops filtering glucose
  4. DInsulin is needed for glucose reabsorption in the tubule
5.Medium

Which hormonal event triggers ovulation?

  1. AA surge of luteinising hormone (LH)
  2. BA rise in progesterone from the corpus luteum
  3. CA surge of prolactin
  4. DA fall in oestrogen
6.Medium

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

  1. ACalcium
  2. BChloride
  3. CSodium
  4. DPotassium
7.Hard

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

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

A patient with small-cell lung cancer has low plasma sodium and low plasma osmolality but inappropriately concentrated urine. What is the most likely explanation?

  1. APrimary hyperaldosteronism
  2. BAddison's disease with high aldosterone
  3. CCranial diabetes insipidus
  4. DSyndrome of inappropriate ADH secretion

Answer key

  1. 1. C · Veins
  2. 2. B · Plasma
  3. 3. C · Cochlea
  4. 4. A · The filtered load exceeds the tubular transport maximum
  5. 5. A · A surge of luteinising hormone (LH)
  6. 6. D · Potassium
  7. 7. B · Undigested lactose draws water into the gut and is fermented by colonic bacteria
  8. 8. D · Syndrome of inappropriate ADH secretion

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