Final answer:
Motor neurons convey output from the central nervous system to muscles and glands, while interneurons connect sensory neurons to motor neurons within the spinal cord or brain.
Step-by-step explanation:
Motor neurons, also known as efferent neurons, carry nerve impulses from the central nervous system to muscles and glands. They are responsible for conveying output signals from the brain and spinal cord to the effector organs.
Interneurons, on the other hand, connect sensory neurons to motor neurons. They are also known as connector neurons or association neurons and play a crucial role in transmitting signals between sensory and motor neurons within the spinal cord or brain.