Gce Model Questions Vol1 2022 Biology Question 40
Practice objective / multiple choice question 40 from the 2022 Gce Model Questions Vol1 Biology examination.
In a simple stretch reflex the afferent sensory neuron is 0.8 m long and conducts at 80 m·s⁻¹, while the efferent motor neuron is 0.6 m long and conducts at 60 m·s⁻¹. The synaptic delay at the spinal cord is 0.5 ms and the muscle contraction delay is 5 ms. Calculate the total time from the onset of muscle stretch to the beginning of muscle contraction, and state whether this response is fast enough to prevent injury if injury would occur after 30 ms.
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This is Gce Model Questions Vol1 2022 Biology Question 40. It is one of the objective questions from the 2022 Gce Model Questions Vol1 Biology examination.
Difficulty level: Medium .
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