Question

question 7
place in order the following steps of a neural (withdrawal) reflex.

1. activation of a motor neuron
2. arrival of stimulus and activation of the receptor
3. response by effector
4. information processing in the cns
5. activation of a sensory neuron

Explanation:

The withdrawal reflex begins with the arrival of a stimulus activating the receptor (step 2). This activates a sensory neuron (step 5) which sends the signal to the CNS for information processing (step 4). Then a motor neuron is activated (step 1) leading to the effector's response (step 3).

Answer:

2, 5, 4, 1, 3 (the option with this sequence is the correct one among the given choices)