NEET PG DENTAL EXAM

Detailed explanation-1: -The correct sequence of the components in a reflex arc is given below: Receptors → Sensory neuron → Spinal cord → Motor neuron → Muscle.

Detailed explanation-2: -A reflex arc is a neural pathway that controls a reflex. In vertebrates, most sensory neurons do not pass directly into the brain, but synapse in the spinal cord. This allows for faster reflex actions to occur by activating spinal motor neurons without the delay of routing signals through the brain.

Detailed explanation-3: -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.

Detailed explanation-4: -Afferent neurons carry information from sensory receptors of the skin and other organs to the central nervous system (i.e., brain and spinal cord), whereas efferent neurons carry motor information away from the central nervous system to the muscles and glands of the body.