| A | B |
|---|
| Acetylcholine (Ach) | Arousal, attention, memory, motivation, & movement (skeletal muscles) |
| Dopamine | Wide variety of behaviors & emotions, including pleasure & pain (voluntary) |
| Serotonin | Regulation of sleep, dreaming, mood, eating, pain, & aggressive behavior |
| Norepinephrine | Affects arousal, wakefulness, learning, memory & mood |
| Endorphins | Involved in the inhibition of pain. Released during strenuous exercise |
| central nervous system (CNS) | consists of the brain & spinal cord |
| peripheral nervous system (PNS) | made up of nerves that radiate throughout the body, linking all of the body's parts to the CNS |
| right hemisphere | excels at visual & spatial tasks, nonverbal imagery, & the perception of emotion |
| left hemisphere | excels at language & perhaps analytical thinking |
| Somatic nervous system | The part of the peripheral nervous system that carries messages from the sense to the central nervous system & between the central nervous system & the skeletal muscles |
| Autonomic nervous system | The part of the peripheral nervous system that carries messages between the central nervous system & the internal organs |
| Sympathetic division | Branch of the autonomic nervous system; it prepares the body for quick action in an emergency |
| parasympathetic division | acts to calm the body down, restoring it to normal levels of arousal |
| Kinesthetic senses | Senses of muscle movement, posture, & strain on muscle & joints |
| Vestibular senses | The senses of equilibrium & body position in space |
