What type of neurons send signals to the central nervous system?

Sensory neurons are responsible for transmitting signals to the central nervous system (CNS) from sensory receptors located throughout the body. These neurons gather information about external stimuli, such as touch, temperature, pain, and sound, and convert that information into electrical impulses. This transmission allows the CNS, which includes the brain and spinal cord, to process and interpret sensory information, leading to appropriate responses.

In contrast, motor neurons carry signals away from the CNS to muscles and glands, facilitating movement and actions. Interneurons are primarily involved in processing information within the CNS, acting as connectors between sensory and motor neurons. Unipolar neurons, a classification based on their structure, are typically sensory neurons, but the term does not encompass all sensory functions exclusively. Thus, sensory neurons are the key players in sending signals to the CNS from the body's sensory systems.