Distinguish the central and peripheral nervous systems by role.
Contrast sensory and motor neurons, and autonomic and somatic control.
Describe how a signal moves through a neuron and crosses the synapse.
What the lesson concludes
The CNS (brain and spinal cord) commands, and the PNS carries signals to and from the body.
Sensory neurons send information to the CNS, motor neurons send commands away from it.
Autonomic nerves run involuntary functions like heart rhythm and digestion, somatic nerves run voluntary movement.
A signal moves dendrite to axon to axon terminal, then crosses the synapse as a chemical neurotransmitter, a detail the TEAS likes to test since the crossing point is chemical, not electrical.