KROK 1 2008 – Question 173 · KROK (Medicine) · Physiology
A patient came to the hospital complaining about quick fatigability and apparent muscle weakness. Examination revealed an autoimmune disease that causes disorder of functional receptor condition in neuromuscular synapses. What transmitter will be blocked?
- A. Dopamine
- B. Acetylcholine
- C. Glycine
- D. Serotonin
- E. Noradrenalin
Hint
Think about which chemical messenger the motor nerve ending releases onto the muscle fibre and which receptors are attacked by antibodies in myasthenia.
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 60 y.o. patient has a reduced perception of high-frequency sounds. What structures’ disorder of auditory analyzer caused these changes?
- Power inputs of a boy increased from 500 to 2000 kJ pro hour. What can be the cause of it?
- In course of an experiment a skeletal muscle is being stimulated by a series of electric impulses. What type of muscle contraction will arise, if…
- A patient has a transverse disruption of spinal cord below the IV thoracic segment. What changes of respiration will it cause?
- A lightly dressed man is standing in a room, air temperature is +14 °C, windows and doors are closed. In what way does he emit heat the most actively?
- A peripheral segment of vagus nerve on a dog’s neck was being stimulated in course of an experiment. The following changes of cardiac activity could…