KROK 1 2012 – Question 26 · KROK (Medicine) · Physiology
A child has abnormal formation of tooth enamel and dentin as a result of low concentration of calcium ions in blood. Such abnormalities might be caused by deficiency of the following hormone:
- A. Somatotropic hormone
- B. Triiodothyronine
- C. Thyrocalcitonin
- D. Thyroxin
- E. Parathormone
Hint
Work backwards from the stem: tooth mineralisation fails because of low blood calcium, so ask which hormone's lack lowers calcium rather than raises it.
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 Physiology
- A sportsman was examined after an intensive physical activity. The examination revealed disorder of movement coordination but the force of muscle…
- After a long training session a sportsman has developed fatigue accompanied by abrupt performance decrement. What link of the reflex arch was the…
- Blood minute volume of a 30 year old woman at rest is 5 l/m. What blood volume is pumped through the pulmonary vessels per minute?
- A patient under test was subjected to a moderate physical stress. His minute blood volume amounted 10 l/min. What blood volume was pumped through…
- A patient presents with the following motor activity disturbances: tremor, ataxia and asynergia movements, dysarthria. The disturbances are most…
- A man has a considerable decrease in diuresis as a result of 1,5 l blood loss. The primary cause of such diuresis disorder is the hypersecretion of…