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 does the corpus luteum mainly secrete after ovulation?

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

Which cells secrete antibodies?

  1. AHelper T cells
  2. BPlasma cells
  3. CNeutrophils
  4. DMacrophages
3.Easy

Which type of white blood cell is the most numerous in healthy adult blood?

  1. ALymphocytes
  2. BEosinophils
  3. CNeutrophils
  4. DMonocytes
4.Medium

Which hormone increases water reabsorption in the collecting ducts of the kidney?

  1. AAldosterone
  2. BAntidiuretic hormone (ADH)
  3. CAtrial natriuretic peptide
  4. DParathyroid hormone
5.Medium

Which hormone is released by the adrenal cortex in response to ACTH?

  1. ACortisol
  2. BAdrenaline
  3. CThyroxine
  4. DAldosterone, as the main response
6.Medium

Why can cardiac muscle not be tetanised like skeletal muscle?

  1. AIt is controlled only by hormones
  2. BIt has no calcium in the sarcoplasmic reticulum
  3. CIt is not striated
  4. DIts long refractory period lasts almost as long as the contraction
7.Hard

Why does breathing 100% oxygen correct hypoxaemia from a true right-to-left shunt only poorly?

  1. AShunted blood is already fully saturated
  2. BThe shunted blood never comes into contact with alveolar gas
  3. CPure oxygen damages haemoglobin
  4. DThe extra oxygen is all exhaled as CO₂
8.Hard

In a patient with primary hypothyroidism, you would expect:

  1. AHigh TSH and low free T4
  2. BHigh TSH and high free T4
  3. CLow TSH and high free T4
  4. DLow TSH and low free T4

Answer key

  1. 1. C · Progesterone
  2. 2. B · Plasma cells
  3. 3. C · Neutrophils
  4. 4. B · Antidiuretic hormone (ADH)
  5. 5. A · Cortisol
  6. 6. D · Its long refractory period lasts almost as long as the contraction
  7. 7. B · The shunted blood never comes into contact with alveolar gas
  8. 8. A · High TSH and low free T4

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