What type of neurons are responsible for carrying impulses away from the CNS?

What type of neurons are responsible for carrying impulses away from the CNS?

• A. Afferent neurons
• B. Efferent (motor) neurons
• C. Interneurons
• D. Glial cells

Answer: (B)

The type of neurons responsible for carrying impulses away from the central nervous system (CNS) are efferent neurons, also known as motor neurons. These neurons play a crucial role in the nervous system by transmitting signals from the brain and spinal cord to various effectors, such as muscles and glands. This transmission leads to actions like movement and glandular secretion, illustrating the function of the efferent pathways in the communication between the CNS and the body.

Afferent neurons, in contrast, are involved in bringing sensory information into the CNS, while interneurons serve to connect different neurons within the CNS and are involved in processing information. Glial cells, although vital to the overall operation and support of the nervous system, do not transmit nerve impulses themselves. Recognizing the distinct roles of these various types of cells helps clarify the specific function of efferent neurons in the nervous system's overall operation.