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KROK (Medicine) questions: Physiology — page 7

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

  1. Fasting energy expenditure is being measured in a person, who is lying down in a state of physical and mental rest, while the room temperature is within the comfort… KROK 1 2020 – Question 15
  2. A ballet dancer spins to the left. During the spin, her eyes snap quickly to the left. This fast eye movement is caused by the activation of: KROK 1 2020 – Question 18
  3. Clinical blood testing is recommended to be done in the morning and on an empty stomach. What change in the blood composition is likely if a blood sample was obtained… KROK 1 2020 – Question 37
  4. A patient has signs of striatopallidal system damage. These signs are caused by disturbed synthesis of a certain mediator in a certain structure. Name this mediator and… KROK 1 2020 – Question 53
  5. The patient’s ECG shows that in the second standard lead from the extremities the P waves are positive, their amplitude is 0.1 mV (norm is 0.05-0.25 mV), duration 0.1… KROK 1 2020 – Question 68
  6. A certain type of digestion is disturbed in the patient’s small intestine. This type of digestion occurs on the apical surface of enterocytes and uses the… KROK 1 2020 – Question 72
  7. To study a normal menstruation cycle, the OB-GYN specialist, taking into account the pyrogenic effect of progesterone, measured the patient’s rectal basal body… KROK 1 2020 – Question 90
  8. A patient complains of rapid fatigability and severe muscle weakness. Examination detected an autoimmune disease that disturbs the functionality of the receptors in the… KROK 1 2020 – Question 107
  9. A person developed increased pulmonary ventilation due to physical exertion. What indicator of pulmonary function will be significantly increased compared to the… KROK 1 2020 – Question 108
  10. When preparing for an important sports contest, it is recommended to train at high altitude (2-3 km above mean sea level). Prolonged exposure to such conditions leads to: KROK 1 2020 – Question 109
  11. ECG of the patient shows increased duration of the QRS complex. What is the most likely cause? KROK 1 2020 – Question 117
  12. A victim of a traffic accident suffered damage to one half of the spinal cord and developed Brown-Sequard syndrome. What causes motor function disturbance on the… KROK 1 2020 – Question 130
  13. What compensatory response occurs in the human body, when external temperature significantly rises? KROK 1 2020 – Question 132
  14. 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 2020 – Question 146
  15. What internal organ plays the largest role in humoral regulation of erythropoiesis? KROK 1 2023 – Question 7
  16. A person entered a room with increased levels of carbon dioxide in the air. How will the breathing of this person change? KROK 1 2023 – Question 47
  17. There is a time limit for how long a person can stay at an altitude of over 8000 meters above sea level without oxygen tanks. What is the limiting factor for the life… KROK 1 2023 – Question 50
  18. Laboratory testing detects glucose in the urine of an 18-year-old patient, while glucose levels in the patient’s blood plasma are normal. What is the likely cause of… KROK 1 2023 – Question 58
  19. Residents of areas with a cold climate have increased blood levels of a certain hormone that has an adaptive thermoregulatory value. What hormone is it? KROK 1 2023 – Question 63
  20. When pressure in the aorta sharply increases, the force and rate of cardiac contractions decrease. What nerve contains sensitive fibers from baroreceptors of the aortic… KROK 1 2023 – Question 65
  21. Despite profuse sweating, a person feels stuffy and hot in a tropical forest at a relatively low air temperature (26–27°C). Why is profuse sweating not an effective… KROK 1 2023 – Question 73
  22. In an experiment, a neuromuscular preparation of frog was treated with a curare-like substance. As a result, muscle contractions in response to electrical stimulation… KROK 1 2023 – Question 74
  23. The corpus luteum forms during the luteal phase of the menstrual cycle. This temporary endocrine gland stimulates the synthesis of a certain hormone. What hormone is it? KROK 1 2023 – Question 89
  24. A 60-year-old woman has congestive heart failure with increased cardiac preload. What bioactive substance will be secreted by the heart in this case? KROK 1 2023 – Question 95
  25. Analysis of the patient’s ECG recorded in the I, II, and III standard leads shows that the P wave is positive in each one of them. What does it indicate? KROK 1 2023 – Question 97
  26. Human brain produces endogenous peptides that are similar to morphine and can reduce pain perception. Select such peptides from the list below. KROK 1 2023 – Question 107
  27. A patient complains of frequent bleeding from the gums. Blood test detects deficiency of blood coagulation factor II (prothrombin). What phase of blood coagulation is… KROK 1 2023 – Question 111
  28. In an experiment, certain nuclei of the hypothalamus were destroyed in homeothermic animals, which resulted in them being unable to maintain their body temperature… KROK 1 2023 – Question 115
  29. Problems with the processes of lipid breakdown in small intestine are caused by disturbed lipase activity. What factor activates lipase? KROK 1 2023 – Question 122
  30. Family of a 52-year-old man brought him to a doctor with complaints that he does not understand spoken words, despite being able to speak himself. He cannot read… KROK 1 2023 – Question 125
  31. A patient presents with impaired water reabsorption in the kidneys, which is directly related to disturbed secretion of a certain hormone. Name this hormone. KROK 1 2023 – Question 140
  32. In an experiment on an isolated squid giant axon submerged in a salt solution, the extracellular potassium ions concentration was increased to the level of the… KROK 1 2021 – Question 2
  33. In an experiment, electrical stimulation of neurons in the brain of a test animal resulted in hypophagia (refusal to eat). Electrodes were applied to the following area… KROK 1 2021 – Question 5
  34. An isolated cell of a human heart automatically generates excitation impulses at the rate of 60/min. This cell was obtained from the: KROK 1 2021 – Question 34
  35. A person has increased pulmonary ventilation because of physical exertion. What indicator of external respiration will be significantly increased compared to the… KROK 1 2021 – Question 40
  36. A man has undergone a surgery for the removal of one third of his large intestine that was involved in a pathological process. How will water absorption change in this… KROK 1 2021 – Question 41
  37. A long-term taking of potassium preparations has caused hyperkalemia in the patient. This condition results in the following changes in secretion: KROK 1 2021 – Question 54
  38. After a cerebral trauma a person has lost the eyesight. What areas of the cerebral cortex are likely to be damaged, causing this condition? KROK 1 2021 – Question 64
  39. A man has atrioventricular block of the I degree with a prolonged PQ interval of 0.25 seconds. What cardiac ability is disturbed in this case? KROK 1 2021 – Question 65
  40. Ventricular myocardium of the examined person exhibits disturbed repolarization processes. It causes disturbances in amplitude, configuration, and duration of the… KROK 1 2021 – Question 66
  41. Excitation processes in cardiomyocytes have been studied in an experiment. It was determined that during the phase of their rapid depolarization Na⁺ ions can… KROK 1 2021 – Question 87
  42. During examination of a man, who was in a car accident, the neurologist has detected dysmetria. This sign is characterized by: KROK 1 2021 – Question 101
  43. What compensatory response occurs in the human body when external temperature significantly rises? KROK 1 2021 – Question 111
  44. A patient has cardiac rhythm disturbance. ECG shows heart rate of 60/min., prolongation of PQ interval, and periodical loss of QRS complex. What cardiac rhythm… KROK 1 2021 – Question 130
  45. A patient suffers from disturbed renal function. To check the filtration ability of the kidneys, he was referred for clearance measurement of the following substance: KROK 1 2021 – Question 134
  46. What differs a sanguinic from a phlegmatic? KROK 1 2021 – Question 142
  47. ECG of the patient shows increased duration of the QRS complex. What is the most likely cause? KROK 1 2021 – Question 144
  48. A 60 year old patient has impaired perception of high-frequency sounds. These changes were caused by damage of the following auditory analyzer structures: KROK 1 2008 – Question 7
  49. A student takes notes of a lecture. Quality of his notes became significantly worse when his neighbours began talking. What type of conditional reflex inhibition was… KROK 1 2008 – Question 11
  50. An aged man had raise of arterial pressure under a stress. It was caused by activation of: KROK 1 2008 – Question 17

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