Which term means to carry away from?

• A. Endarterectomy
• B. Efferent
• C. Electrocardiography
• D. Electrocardiogram

Answer: (B)

Think about directional roots in medical terms. Efferent comes from Latin effero, meaning to carry away. In anatomy and physiology, efferent pathways carry signals away from a central structure—like efferent nerves carrying motor commands from the brain to muscles. That's why this term specifically means to carry away from.

The other terms point to procedures or measurements rather than direction. Endarterectomy is a surgical procedure to remove plaque from inside an artery. Electrocardiography is the process of recording the heart’s electrical activity, and an electrocardiogram is the actual recording itself.