PATHOLOGY

Detailed explanation-1: -Thus the correct sequence is a sensory receptor, sensory neuron, interneuron, motor neuron and last effector.

Detailed explanation-2: -Reflex arcs Sensory neuron sends electrical impulses to a relay neuron, which is located in the spinal cord of the CNS. Relay neurons connect sensory neurons to motor neurons. Motor neuron sends electrical impulses to an effector.

Detailed explanation-3: -The reflex arc is a special type of neural circuit that begins with a sensory neuron at a receptor (e.g., a pain receptor in the fingertip) and ends with a motor neuron at an effector (e.g., a skeletal muscle).

Detailed explanation-4: -Sensory cells carry input from the receptor (afferent impulses) to a central interneuron, which makes contact with a motor neuron. The motor neuron carries efferent impulses to the effector, which produces the response.

Detailed explanation-5: -What components of the nervous system are involved in a reflex arc? A reflex arc involved an afferent or sensory neuron, an interneuron, and an efferent or motor neuron.