KROK 1 2008 – Question 56 · KROK (Medicine) · Pathophysiology
An animal with aortic valve insufficiency got hypertrophy of its left heart ventricle. Some of its parts have local contractures. What substance accumulated in the myocardiocytes caused these contractures?
- A. Potassium
- B. Carbon dioxide
- C. Calcium
- D. Lactic acid
- E. Sodium
Hint
Think about which ion is normally pumped out of the cytoplasm so fibres can relax, and which, if it builds up in overloaded cells, keeps contractile proteins locked.
The answer, the explanation and a note on every option are available once you log in. The account is free: topic tests, a mock exam, mistake review and statistics.
More questions on Pathophysiology
- A girl is diagnosed with adrenogenital syndrome (pseudohermaphroditism). This pathology was caused by hypersecretion of the following adrenal hormone:
- Prophylactic medical examination of a 36 year old driver revealed that his AP was 150/90 mm Hg. At the end of working day he usually hears ear…
- A 59 year old patient is a plant manager. After the tax inspection of his plant he felt intense pain behind his breastbone irradiating to his left…
- A 56 year old patient came to a hospital with complaints about general weakness, tongue pain and burning, sensation of limb numbness. In the past he…
- A chemical burn caused esophagus stenosis. Difficulty of ingestion led to the abrupt loss of weight. In blood: erythrocytes - 3.0 · 10¹²/l, Hb - 106…
- A 30 year old woman has face edemata. Examination revealed proteinuria (5,87 g/l), hypoproteinemia, dysproteinemia, hyperlipidemia. What condition…