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The brain and the nervous system

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Question 15

An electromyogram (EMG) is used to measure the latency of the patellar tendon reflex (knee-jerk reflex) in a patient. The table below shows the reflex latency recorded over 5 diagnostic trials.

Table 1

TrialReflex latency in seconds (s)
10.032
20.185
30.029
40.031
50.028

Calculate the mean reflex latency of the patient in milliseconds (ms).

You should exclude any anomalous results.

[2]

The brain and the nervous system Questions

  1. GCSE
  2. /Biology
  3. /The brain and the nervous system