Answer:
PNS → CNS → PNS
Step-by-step explanation:
CNS is Central Nervous System, and it consists of the brain and the spinal cord
PNS is the Peripheral Nervous System which is made of peripheral nerves that connect the CNS with the receptors and effectors.
Receptors are structures for the detection of the stimuli (information)
Afferent nerves (sensory neurons) carry that information to the brain (CNS), where the data is processed.
Interneurons conduct information within the CNS.
Efferent nerves (motor neurons) carry the information from the CNS to the effectors (muscles, glands) to perform a response (move her hand out of the way).