Question

Put the following parts of a reflex arc in the correct order beginning with the sensory receptor:
(A) Motor neuron
(B) Interneuron
(C) Effector
(D) Sensory neuron
(E) Sensory receptor

• A. $\left(E\right)\left(D\right)\left(B\right)\left(A\right)\left(C\right)$
• B. $\left(E\right)\left(D\right)\left(A\right)\left(B\right)\left(C\right)$
• C. $\left(A\right)\left(B\right)\left(C\right)\left(D\right)\left(E\right)$
• D. $\left(A\right)\left(E\right)\left(D\right)\left(B\right)\left(C\right)$

Answer 1

Answer: (A)

$\left(E\right)\left(D\right)\left(B\right)\left(A\right)\left(C\right)$

• A reflex arc is the pathway of transmission of nerve impulse which controls the nerve action.
• Sensory receptors receive the stimulus from the organs and convey is to the central nervous system by sensory neurons.
• Interneuron carries the impulse from one neuron to the other.
• The stimulus is converted to the response by the brain which is carried to the effector by the motor neuron.

So, the correct answer is option A.