These convey impulses from receptor to the central nervous system what is it?

Afferent neurons (sensory neurons) are responsible for conveying impulses from receptors to the central nervous system (CNS). These specialized neurons form the sensory component of the peripheral nervous system and play a crucial role in transmitting sensory information from various parts of the body to the brain and spinal cord.

Afferent neurons receive stimuli from sensory receptors and convert them into electrical signals known as action potentials. These action potentials are then transmitted along the axons of afferent neurons towards the CNS. The cell bodies of afferent neurons are located in sensory ganglia, which are clusters of neurons outside the CNS.

Sensory receptors, located in different tissues and organs throughout the body, detect a wide range of stimuli, including touch, pain, temperature, taste, smell, and proprioception (awareness of body position and movement). Afferent neurons are specialized to respond to specific types of stimuli and relay sensory information accordingly.

Once the action potentials reach the CNS, they are processed by various brain regions, such as the sensory cortex, thalamus, and cerebellum. This processing allows us to perceive and interpret sensations, enabling us to interact with our environment appropriately.

In summary, afferent neurons are essential for transmitting sensory information from the periphery to the central nervous system, facilitating our perception of the world around us.