Efferent means what?

Efferent means what?

• A. Exiting
• B. Entering
• C. Remaining
• D. Circulating

Answer: (A)

Efferent describes signals or pathways that carry away from a central structure. In the nervous system, efferent pathways are the motor outputs that leave the brain or spinal cord to reach muscles or glands, producing action. This is the opposite of afferent, which brings information toward the central structure. A helpful example is the motor nerves that travel from the CNS to skeletal muscles to cause movement. In the kidney, the efferent arteriole carries blood away from the glomerulus to other parts of the circulation, illustrating the idea of exiting from a source. So the concept captured by efferent is exiting or moving outward from a control center.

Efferent describes signals or pathways that carry away from a central structure. In the nervous system, efferent pathways are the motor outputs that leave the brain or spinal cord to reach muscles or glands, producing action. This is the opposite of afferent, which brings information toward the central structure. A helpful example is the motor nerves that travel from the CNS to skeletal muscles to cause movement. In the kidney, the efferent arteriole carries blood away from the glomerulus to other parts of the circulation, illustrating the idea of exiting from a source. So the concept captured by efferent is exiting or moving outward from a control center.