Neco 2021 Biology Question 17
Practice objective / multiple choice question 17 from the 2021 Neco Biology examination.
Consider a stretch reflex in which the sensory neuron length from the muscle spindle to the spinal cord is 0.5 m and the motor neuron length from the spinal cord to the muscle is 0.4 m. The conduction velocity of the sensory fibre is 80 m·s\(^{-1}\) and that of the motor fibre is 60 m·s\(^{-1}\). The synaptic delay at the spinal interneuron is 0.5 ms. Calculate the total reflex time from the onset of muscle stretch to the beginning of muscle contraction. Is this reflex time less than 15 ms, classifying it as a fast reflex? Answer "Yes" or "No".
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About This Question
This is Neco 2021 Biology Question 17. It is one of the objective questions from the 2021 Neco Biology examination.
Difficulty level: Medium .
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