| A | B |
|---|
| Peripheral Nervous System | nerves that & spinal cord with receptors, muscles and glands |
| Somatic Nervous System | conducts impulses from the brain & spinal cord to skeletal muscles |
| Sensory Nerve | carries impulses from sense organs to the brain or spinal cord |
| Motor Nerve | carries impulses from brain & spinal cord to muscles or glands |
| Mixed Nerve | nerves that have both sensory and motor fibers |
| Cranial Nerve | begin in areas of the brain |
| Spinal Nerve | originate at the spinal cord |
| Autonomic Nervous System | controls the automatic functions or activities of organs |
| Sympathetic system | "fight or flight" system; reacts under periods of stress, fear and anger |
| Parasympathetic system | restores balance in the body after "fight or flight" reaction |
| reflex act | simplest type of nervous response; unconscious and involuntary |
| stimulus | change in the environment (sound waves, light waves, heat & odors) |
| receptors | picks up stimuli |
| effectors | reactions or reactors to a stimulus (muscles, glands, organs) |
