Which of the following is the correct sequence in a typical reflex arc?
A) effector, sensory neuron, integration center, motor neuron, receptor
B) receptor, sensory neuron, integration center, motor neuron, effector
C) effector, motor neuron, integration center, sensory neuron, receptor
D) receptor, motor neuron, integration center, sensory neuron, effector
E) receptor, sensory neuron, motor neuron, integration center, effector

Question

Quizplus · Accepted Answer

A reflex arc typically starts with a sensory receptor receiving a stimulus, which then activates a sensory neuron. The sensory neuron carries the signal to an integration center, typically a neuron in the spinal cord or brainstem. The integration center processes the signal and generates a response, which is transmitted to a motor neuron. The motor neuron carries the signal to an effector, typically a muscle or gland, which carries out the appropriate response. Therefore, the correct sequence is receptor, sensory neuron, integration center, motor neuron, effector, which is represented by option B.

Which of the Following Is the Correct Sequence in a Typical