KROK 1 2015 – Question 181 · KROK (Medicine) · Physiology
An experiment was aimed at testing flexor reflex in a spinal frog, which was initiated by simultaneous stimulation with isolated pre-threshold electrical impulses. The frequency of those impulses was such, that the reflex occurred. What process in the nerve centers can be observed during this experiment?
- A. Presynaptic summation
- B. Temporal summation
- C. Threshold summation
- D. Spatial summation
- E. Postsynaptic summation
Hint
Focus on what the frequency of the stimuli tells you about how the individual subthreshold responses of a single neuron combine with each other.
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