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 hormone raises blood calcium levels?

  1. AParathyroid hormone
  2. BThyroxine
  3. CCalcitonin
  4. DInsulin
2.Easy

Which organ filters the blood to produce urine?

  1. AKidney
  2. BBladder
  3. CLiver
  4. DSpleen
3.Easy

Which hormone is mainly produced by the testes?

  1. ATestosterone
  2. BOxytocin
  3. CProlactin
  4. DProgesterone
4.Medium

Which hormone makes the gallbladder contract after a fatty meal?

  1. ASecretin
  2. BGastrin
  3. CInsulin
  4. DCholecystokinin (CCK)
5.Medium

Which protein forms the mesh that stabilises a blood clot?

  1. ACollagen
  2. BAlbumin
  3. CThrombin
  4. DFibrin
6.Medium

In skeletal muscle, where does most of the calcium for contraction come from?

  1. AThe nucleus
  2. BThe sarcoplasmic reticulum
  3. CThe mitochondria
  4. DThe extracellular fluid
7.Hard

Spirometry shows reduced FEV1 and reduced FVC, with a normal or high FEV1/FVC ratio. What pattern is this?

  1. AAn obstructive pattern, as in asthma
  2. BA normal result in an older adult
  3. CAn obstructive pattern, as in emphysema or chronic bronchitis
  4. DA restrictive pattern, as in pulmonary fibrosis
8.Hard

Which transporter in the thick ascending limb of the loop of Henle is key to building the medullary concentration gradient?

  1. AThe Na⁺–K⁺–2Cl⁻ cotransporter (NKCC2)
  2. BAquaporin-2 water channels
  3. CThe sodium–glucose cotransporter (SGLT2)
  4. DThe epithelial sodium channel (ENaC)

Answer key

  1. 1. A · Parathyroid hormone
  2. 2. A · Kidney
  3. 3. A · Testosterone
  4. 4. D · Cholecystokinin (CCK)
  5. 5. D · Fibrin
  6. 6. B · The sarcoplasmic reticulum
  7. 7. D · A restrictive pattern, as in pulmonary fibrosis
  8. 8. A · The Na⁺–K⁺–2Cl⁻ cotransporter (NKCC2)

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