NEET UG · Biology

Human physiology

35 practice questions, each with the answer and an explanation.

Practise Human physiology now

Random questions from this topic, one at a time. You see the answer and the explanation straight after each one.

All 35 questions

  1. Which hormone lowers blood glucose level?
  2. What is the structural and functional unit of the kidney?
  3. Which structure is known as the natural pacemaker of the heart?
  4. Gaseous exchange in the human lungs takes place in the
  5. Which pigment carries oxygen in human blood?
  6. What is the functional unit of the nervous system?
  7. How many bones are there in an adult human body?
  8. Which is the largest gland in the human body?
  9. Which blood group is called the universal recipient?
  10. Insulin is secreted by which cells?
  11. Which vitamin is essential for blood clotting?
  12. Deficiency of which vitamin causes rickets?
  13. Thyroxine is produced by which gland?
  14. Which enzyme in saliva begins the digestion of starch?
  15. What is the normal lifespan of a human red blood cell?
  16. Which part of the brain controls balance and coordination of movement?
  17. Which hormone prepares the body for 'fight or flight'?
  18. Which blood cells mainly defend the body against infection?
  19. How many pairs of ribs does a human being have?
  20. Where is bile stored?
  21. The Rh factor was first discovered in which animal?
  22. Which hormone produced by the juxtaglomerular apparatus of the kidney triggers the renin-angiotensin-aldosterone system (RAAS) in response to a drop in glomerular filtration rate?
  23. In the human cardiac cycle, what causes the second heart sound ('dub') heard through a stethoscope?
  24. Which cells of the gastric mucosa are responsible for secreting hydrochloric acid (HCl) and intrinsic factor for Vitamin B12 absorption?
  25. During resting conditions in a human neuron, what primarily maintains the negative resting membrane potential of approximately ?
  26. Which part of the human nephron is completely impermeable to water regardless of hormonal influence?
  27. In skeletal muscle contraction, what binding event causes the displacement of tropomyosin from the myosin-binding sites on actin filaments?
  28. Insulin is synthesized by which specific cell type located in the Islets of Langerhans of the pancreas?
  29. What respiratory capacity represents the maximum volume of air a person can breathe in after a forced expiration (Tidal Volume + Inspiratory Reserve Volume + Expiratory Reserve Volume)?
  30. Which hormone produced by the posterior pituitary (neurohypophysis) stimulates vigorous uterine contractions during parturition?
  31. Which clotting factor acts as an enzyme to convert soluble fibrinogen into insoluble fibrin threads during blood coagulation?
  32. Where in the human body are the receptors for lipid-soluble steroid hormones (such as estrogen and cortisol) primarily located?
  33. Brunner's glands are specialized submucosal glands found exclusively in which section of the human alimentary canal?
  34. A person has tidal volume , anatomical dead space and breathes times per minute. During exercise the breathing becomes breaths per minute with tidal volume…
  35. Which enzyme hormone released by the juxtaglomerular apparatus of the kidney activates downstream angiotensinogen cleavage in response to a drop in glomerular filtration rate?

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