Question

Place the following steps in the correct order for a reflex arc:

1. Sensory neurons pass signals to interneurons.
2. Nerve signals travel along motor fibers to an effector.
3. Sensory receptors generate nerve signals.
4. Interneurons synapse with motor neurons.
5. There is a response to the stimulus.

Answer 1

Answer:

The correct sequence is 3,1,4,2 and 5.

Explanation:

In the reflex arc, a signal is generated by the sensory cells and is conducted with the help of interneurons and returns back using motor neurons to bring out the reflex. The nerve pathway taken by a reflex action is known as a reflex arc. In the process, a receptor situated in the skin determines a stimulus. After that the sensory neuron transmits electrical impulses towards a relay neuron, and this relay neuron associates sensory neurons to the motor neurons. The motor neurons further transmits electrical impulses to an effector. The effector eventually generates a response.