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

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

  1. APlasma
  2. BInterstitial fluid
  3. CLymph
  4. DCytoplasm
2.Easy

Which hormone raises blood calcium levels?

  1. AParathyroid hormone
  2. BThyroxine
  3. CInsulin
  4. DCalcitonin
3.Easy

Which hormone, released by the stomach lining, stimulates gastric acid secretion?

  1. AInsulin
  2. BGastrin
  3. CSecretin
  4. DGlucagon
4.Medium

Vital capacity is the sum of which lung volumes?

  1. ATidal volume and residual volume
  2. BResidual volume and expiratory reserve volume
  3. CTidal volume, inspiratory reserve volume and expiratory reserve volume
  4. DInspiratory reserve volume and residual volume
5.Medium

Why can cardiac muscle not be tetanised like skeletal muscle?

  1. AIt is controlled only by hormones
  2. BIts long refractory period lasts almost as long as the contraction
  3. CIt is not striated
  4. DIt has no calcium in the sarcoplasmic reticulum
6.Medium

What does the QRS complex on an ECG represent?

  1. AAtrial depolarisation
  2. BVentricular depolarisation
  3. CVentricular repolarisation
  4. DAtrial repolarisation
7.Hard

In the renin–angiotensin–aldosterone system, where is angiotensin I mainly converted to angiotensin II?

  1. AIn the kidneys' juxtaglomerular cells
  2. BIn the lungs
  3. CIn the liver
  4. DIn the adrenal cortex
8.Hard

At the start of a fever, a patient shivers and feels cold even though body temperature is rising. Why?

  1. APyrogens raise the hypothalamic set point above the current body temperature
  2. BSweating has already cooled the body too much
  3. CThe thermoreceptors in the skin are destroyed
  4. DThe body has lost its ability to produce heat

Answer key

  1. 1. A · Plasma
  2. 2. A · Parathyroid hormone
  3. 3. B · Gastrin
  4. 4. C · Tidal volume, inspiratory reserve volume and expiratory reserve volume
  5. 5. B · Its long refractory period lasts almost as long as the contraction
  6. 6. B · Ventricular depolarisation
  7. 7. B · In the lungs
  8. 8. A · Pyrogens raise the hypothalamic set point above the current body temperature

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