Given the following five parts, place them in order of a reflex arc: (1) central nervous system, (2) effector, (3) motor neuron, (4) receptor, (5) sensory neuron.
A) 4, 5, 1, 3, 2
B) 4, 5, 3, 2, 1
C) 3, 1, 4, 5, 2
D) 2, 3, 4, 1, 5

Question

Quizplus · Accepted Answer

The correct sequence for a reflex arc starts with the receptor (4) that detects a stimulus. The sensory neuron (5) then carries the signal to the central nervous system (1). From there, the motor neuron (3) transmits the signal to the effector (2), which responds to the stimulus.

Given the Following Five Parts, Place Them in Order of a Reflex