Neurons • Neurons –cells that transmit nerve impulses•3 Types of Neurons –Sensory neurons carry impulses from sense organs to the spinal cord and brain–Motor neurons carry impulses from the brain and spinal cord to muscles and glands–Interneurons connect sensory and motor neurons and carry impulses between them.eurons • Neurons –cells that transmit nerve impulses•3 Types of Neurons –Sensory neurons carry impulses from sense organs to the spinal cord and brain–Motor neurons carry impulses from the brain and spinal cord to muscles and glands–Interneurons connect sensory and motor neurons and carry impulses between them.