| A | B |
|---|
| sensor | cells that detect a stimulus |
| neuron | nerve cell |
| effector cells | make a response |
| transmission | electrical impulse throughout the system |
| muscle | a type of effector cell |
| stimulus | a change inside or outside of the body |
| response | the brain coordinates this to the body |
| receptor | another name for a sensor cell |
| effector | can be either a muscle or a gland |
| cervical | 7 vertabrae in the neck |
| thoracic | 12 vertabrae in the mid-back |
| CNS | central nerous system |
| lumbar | 5 vertabrae below thoracic area |
| sacrum | 5 fused vertebrae below the lumbar |
| coccyx | 4 fused vertebrae below the sacrum |
| peripheral nerves | from the spinal cord to arms, hands, legs & feet |
| autonomic nerves | from the spinal cord to lungs, heart, stomach, intestines, bladder & sex organs |
