What type of neurons are responsible for transmitting information through efferent fibers?

Motor neurons are responsible for transmitting information through efferent fibers. Efferent fibers carry signals away from the central nervous system to muscles and glands, prompting them to respond. This function is critical for voluntary movement and involuntary actions, ensuring that the body's responses to various stimuli are executed appropriately.

Motor neurons are characterized by their long axons, which extend from the spinal cord to target tissues in the body. They play a key role in motor control, facilitating communication between the brain or spinal cord and the muscles, which enables activities such as walking, talking, and even reflex actions.

In contrast, interneurons primarily function within the central nervous system to connect sensory and motor neurons, while sensory neurons are responsible for transmitting information from sensory receptors to the central nervous system. Cranial neurons is not a standard term used in neuroanatomy and does not refer to a specific category of neurons. Thus, motor neurons stand out as the type which specifically utilizes efferent fibers for their function, making them the correct answer.