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 gland is often called the "master gland" because it controls many other endocrine glands?

  1. APituitary gland
  2. BAdrenal gland
  3. CThyroid gland
  4. DPineal gland
2.Easy

Where is most of the nutrient absorption in the digestive tract?

  1. AStomach
  2. BLarge intestine
  3. CSmall intestine
  4. DOesophagus
3.Easy

Which mineral is an essential part of haemoglobin?

  1. ACalcium
  2. BIron
  3. CIodine
  4. DZinc
4.Medium

According to Poiseuille's law, if the radius of an arteriole halves, its resistance to flow:

  1. AHalves
  2. BIncreases about 16-fold
  3. CDoubles
  4. DIncreases 4-fold
5.Medium

What is anatomical dead space?

  1. AThe air that stays in the lungs after full exhalation (residual volume)
  2. BAlveoli that have collapsed completely
  3. CThe space between the two pleural layers
  4. DThe volume of the conducting airways where no gas exchange happens
6.Medium

What does the QRS complex on an ECG represent?

  1. AAtrial repolarisation
  2. BAtrial depolarisation
  3. CVentricular depolarisation
  4. DVentricular repolarisation
7.Hard

Which combination of signs is expected in a patient in early hypovolaemic shock after major bleeding?

  1. ATachycardia, warm flushed skin and high urine output
  2. BTachycardia, cool pale skin and reduced urine output
  3. CBradycardia, cool pale skin and high urine output
  4. DBradycardia, warm flushed skin and high urine output
8.Hard

In Otto Loewi's classic experiment, fluid from a vagus-stimulated frog heart slowed a second heart. What did this show?

  1. ANerves pass signals to their targets by releasing a chemical
  2. BThe heart beats without any nerve supply
  3. CNerve impulses spread through the fluid directly as electricity
  4. DThe vagus nerve speeds up the heart

Answer key

  1. 1. A · Pituitary gland
  2. 2. C · Small intestine
  3. 3. B · Iron
  4. 4. B · Increases about 16-fold
  5. 5. D · The volume of the conducting airways where no gas exchange happens
  6. 6. C · Ventricular depolarisation
  7. 7. B · Tachycardia, cool pale skin and reduced urine output
  8. 8. A · Nerves pass signals to their targets by releasing a chemical

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