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KROK (Medicine) questions: Physiology — page 6

395 questions in Physiology. Open a question to see the answer options and a hint.

  1. During ascent into mountains a person develops increased respiration rate and rapid heart rate. What is the cause of these changes? KROK 1 2017 – Question 185
  2. A student, whose educational achievements throughout the semester were poor, feels emotionally tense during the final test. What is the primary cause that induced… KROK 1 2017 – Question 187
  3. A laboratory experiment on a dog was used to study central parts of auditory system. One of the mesencephalon structures was destroyed. The dog has lost the orienting… KROK 1 2018 – Question 12
  4. During the prestart period an athlete develops increased frequency and force of cardiac contractions. These changes are caused by intensification of the following… KROK 1 2018 – Question 24
  5. ECG analysis of the patient shows that the T waves are positive in the second standard limb lead and their amplitude and duration is normal. The conclusion can be made… KROK 1 2018 – Question 26
  6. A patient demonstrates sharp decrease of pulmonary surfactant activity. This condition can result in: KROK 1 2018 – Question 27
  7. A 64-year-old woman presents with disturbed fine motor function of her fingers, marked muscle rigidity, and tremor. The neurologist diagnosed her with Parkinson’s… KROK 1 2018 – Question 46
  8. A test animal receives electrical impulses that irritate the sympathetic nerve that innervates blood vessels of the skin. What reaction will it cause in the blood… KROK 1 2018 – Question 63
  9. A person has increased pulmonary ventilation due to physical exertion. What indicator of external respiration will be significantly increased compared to the resting… KROK 1 2018 – Question 65
  10. The carotid bodies on both sides were removed in a test animal. Which of the listed factors WILL NOT be able to cause hyperventilation in the test animal? KROK 1 2018 – Question 66
  11. Due to prolonged stay in the mountains at the altitude of 3000 m above the sea level, a person developed increased oxygen capacity of blood, which was directly caused… KROK 1 2018 – Question 67
  12. A force generated by the muscle is not enough to lift a load. What type of muscle contraction occurs in this case? KROK 1 2018 – Question 73
  13. Atria of a test animal were superdistended with blood, which resulted in decreased reabsorption of Na+ and water in renal tubules. This can be explained by the effect… KROK 1 2018 – Question 81
  14. The dorsal root of the spinal nerve of a test animal was severed. What changes will occur in the innervation area? KROK 1 2018 – Question 88
  15. Due to destruction of certain structures of the brainstem a test animal has lost its orientation reflexes in response to strong light stimuli. What structures were… KROK 1 2018 – Question 89
  16. A 25-year-old woman at her third pregnancy with impending miscarriage was brought to the hospital. What combination of Rh-factor of the mother and the fetus can be the… KROK 1 2018 – Question 95
  17. A woman with the III (B), Rh (-) blood group gave birth to a child with the II (A) blood group. The child is diagnosed with hemolytic disease of newborn caused by… KROK 1 2018 – Question 97
  18. In the process of an experiment, vascular resistance to the blood flow was measured in the different areas of circulatory system. The highest resistance was detected in… KROK 1 2018 – Question 107
  19. In an experiment it is necessary to assess neuromotor and muscle excitability. What value should be measured to make the assessment? KROK 1 2018 – Question 124
  20. Vestibular receptors of semicircular canals of a test animal have been destroyed. What reflexes will disappear as a result? KROK 1 2018 – Question 125
  21. During the fight a man has received a strong blow to the upper anterior abdominal wall, which resulted in the cardiac arrest. What mechanism has led to the cardiac… KROK 1 2018 – Question 131
  22. A woman has lost a lot of blood during the childbirth. Her blood group needs to be determined. Erythrocyte agglutination occurred with standard serums 0 (I) and A (II)… KROK 1 2018 – Question 132
  23. When studying the pulmonary ventilation values, the reduction of forced expiratory volume has been detected. What is the likely cause of this phenomenon? KROK 1 2018 – Question 146
  24. Stool test detects in the patient’s feces a large amount of undigested fats. This patient is the most likely to have disturbed secretion of the following enzymes: KROK 1 2018 – Question 151
  25. A 19-year-old young man was examined in the nephrology clinic. High calcium was detected in his secondary urine. What hormone is likely to cause such change, if it is… KROK 1 2018 – Question 152
  26. A patient has undergone surgical removal of the pylorus. Decreased secretion of the following hormone can be expected: KROK 1 2018 – Question 154
  27. Cell membrane rest potential changed from -85 to -90 mV. It can be caused by activation of the following cell membrane channels: KROK 1 2018 – Question 161
  28. ECG of the patient shows increased duration of the QRS complex. What is the most likely cause? KROK 1 2018 – Question 172
  29. Vascular endothelium is characterized by high metabolic activity and synthesizes vasoactive substances. Among these substances there is a potent vasodilator synthesized… KROK 1 2018 – Question 181
  30. A person becomes less receptive to pain in physically or emotionally straining situations due to activation of: KROK 1 2018 – Question 183
  31. In human organism significant blood loss leads to decreased blood pressure, tachycardia, and weakness. Eventually the sensation of thirst appears. What hormone… KROK 1 2018 – Question 195
  32. On examination the patient was determined to have a strong, balanced, inert type of higher nervous activity according to Pavlov’s classification. What temperament… KROK 1 2019 – Question 1
  33. After a trauma the patient has developed right-sided paralyses and disturbed pain sensitivity. On the left side no paralyses are observed, but pain and thermal… KROK 1 2019 – Question 4
  34. After hyperventilation an athlete developed a brief respiratory arrest. It occurred due to the following changes in the blood: KROK 1 2019 – Question 8
  35. ABO blood group is being determined. Erythrocyte agglutination occurred when standard sera of group I and group II were introduced into the blood being analyzed, while… KROK 1 2019 – Question 13
  36. After a certain CNS structure had been destroyed in a test animal, this animal lost its orienting reflexes. What structure had been destroyed? KROK 1 2019 – Question 14
  37. An experiment was conducted to measure the skin sensitivity threshold. What patches of skin have the highest sensitivity threshold? KROK 1 2019 – Question 21
  38. I.M. Siechenov has proven that a tired limb restores its working capacity faster if during its period of rest another limb works. It became a basis for the concept of: KROK 1 2019 – Question 31
  39. A student, whose educational achievements throughout the semester were poor, feels emotionally tense during the final test. What is the primary cause that induced the… KROK 1 2019 – Question 34
  40. What changes can be expected to occur in the isolated heart of a toad, if excessive amount of calcium chloride is introduced into its perfusate? KROK 1 2019 – Question 38
  41. Human brain produces endogenous peptides that are similar to morphine and can reduce pain perception. Name these peptides: KROK 1 2019 – Question 61
  42. Domestic accident has resulted in a significant blood loss in the patient, which was accompanied by a drop in blood pressure. What hormones ensure quick restoration of… KROK 1 2019 – Question 89
  43. KCl concentration in a solution that surrounds an isolated cell was increased. How will resting membrane potential (RMP) and cell excitability change in this case? KROK 1 2019 – Question 100
  44. An isolated heart was used to study excitation conduction velocity in different areas of the heart. What area had the lowest velocity of excitation conduction? KROK 1 2019 – Question 102
  45. The dorsal root of the spinal nerve of a test animal was severed. What changes will occur in the innervation area? KROK 1 2019 – Question 132
  46. Systemic blood pressure of a person equals 120/65 mm Hg. Blood ejection into aorta occurs when left ventricular pressure exceeds: KROK 1 2019 – Question 144
  47. A 45-year-old woman presents with insufficient secretion of enterokinase enzyme. Enterokinase deficiency can cause disturbance of the following digestive function: KROK 1 2019 – Question 146
  48. A 40-year-old person developed elevated blood pressure after an emotional excitement. What is the likely cause of this effect? KROK 1 2019 – Question 147
  49. On your physiology class, the professor asks you to report about the effects of various body hormones and neurotransmitters on the metabolism of glucose. You begin your… KROK 1 2019 – Question 155
  50. A group of researchers aimed to study cardiac physiology found that overstretching of atria in the heart leads to decreased sodium reabsorption in the distal convoluted… KROK 1 2019 – Question 179

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