Final answer:
Nerve fibers that carry information to the brain are called afferent fibers, which transmit sensory information from the body to the central nervous system.
Step-by-step explanation:
Nerve fibers that carry information to the brain are termed afferent fibers. These fibers, also known as sensory neurons, are responsible for transmitting sensory information from the body's tissues and organs to the central nervous system (CNS). This type of neural pathway is essential for processing physical stimuli, such as touch, sound, and light, which are turned into nerve impulses and communicated to the brain. By contrast, efferent fibers, also known as motor neurons, carry instructions from the CNS to the muscles and other effectors in the body, executing movements and actions. The terms afferent and efferent can be easy to remember because 'efferent = exit' from the CNS and 'afferent = arrive' at the CNS.