What is the definition of efferent nerves?

What is the definition of efferent nerves?

• A. From the brain and cord to the periphery
• B. From the periphery to the cord
• C. From the cord to the brain
• D. None of the above

Answer: (A)

Efferent nerves are defined as those that carry signals away from the central nervous system (CNS) to the periphery, which includes muscles and glands. Specifically, these nerves transmit motor commands from the brain and spinal cord to initiate actions such as muscle movements or glandular secretions. This directional flow of information is crucial for the functioning of the motor system. By definition, efferent refers to the outward pathway, contrasting with afferent nerves, which bring sensory information from the periphery back to the central nervous system. Understanding this definition is foundational for studying nerve functions and the overall nervous system.

Efferent nerves are defined as those that carry signals away from the central nervous system (CNS) to the periphery, which includes muscles and glands. Specifically, these nerves transmit motor commands from the brain and spinal cord to initiate actions such as muscle movements or glandular secretions. This directional flow of information is crucial for the functioning of the motor system. By definition, efferent refers to the outward pathway, contrasting with afferent nerves, which bring sensory information from the periphery back to the central nervous system. Understanding this definition is foundational for studying nerve functions and the overall nervous system.