Which type of neuron carries information from sensory receptors to the central nervous system?

• A. Motor neurons
• B. Interneurons
• C. Sensory neurons
• D. Neuroglia

Answer: (C)

Sensory neurons are specialized nerve cells responsible for transmitting sensory information from sensory receptors to the central nervous system (CNS). These neurons play a crucial role in the process of sensation, as they detect various stimuli such as light, sound, temperature, and chemical signals, converting these stimuli into electrical impulses that can be processed by the brain and spinal cord.

Sensory neurons have unique structures that allow them to efficiently relay information. For instance, they may have long axons and are often found in specific locations where sensory input occurs, such as the skin, eyes, ears, nose, and tongue. This characteristic makes them suited for their function, distinguishing them from other types of neurons, which serve different roles within the nervous system.

Motor neurons, on the other hand, carry signals from the CNS to muscles and glands, facilitating movement and bodily reactions. Interneurons act as connectors between sensory neurons and motor neurons within the CNS, helping to integrate sensory input with motor output. Neuroglia are supportive cells in the nervous system that do not transmit impulses but provide essential support, protection, and nourishment to neurons. These distinctions highlight the specific function of sensory neurons in the context of information processing within the nervous system.