Question

When a response is obtained by the combined effect of many stimuli, the phenomenon is known as

• A. Reflex action
• B. Summation
• C. Action potential
• D. None of the above

Answer 1

Answer: (B)

Summation

Adding two or more individual contractions to produce a resultant contraction with greater intensity is termed as a summation. An automatic, quick and innate response to particular stimuli that is mediated by the reflex arc is known as a reflex action. An action potential is the excitatory potential critically enough to support impulse conduction. So, the correct answer is option B.