You should know the definitions of the following key terms from the chapter. They are listed in the order in which they appear in the chapter. For those you do not know, return to the relevant section of the chapter to learn them.

neuroscience

neurons

glial cells (glia)

dendrites

cell body

axon

myelin sheath

neurotransmitter

synaptic gap (synapse)

positron emission tomography (PET) scan

functional magnetic resonance imaging (fMRI)

agonist

antagonist

acetylcholine (ACh)

dopamine

Parkinson’s disease

blood–brain barrier

L-dopa

serotonin

norepinephrine

selective serotonin reuptake inhibitors (SSRIs)

selective serotonin and norepinephrine reuptake inhibitors (SSNRIs)

GABA (gamma-aminobutyric acid)

glutamate

endorphins

central nervous system (CNS)

peripheral nervous system (PNS)

interneurons

sensory neurons

motor neurons

spinal cord

spinal reflex

somatic (skeletal) nervous system

autonomic nervous system

sympathetic nervous system

parasympathetic nervous system

endocrine glandular system

hormone

pituitary gland

emotion

James-Lange theory

Cannon-Bard theory

Schachter-Singer two-factor theory

medulla

pons

reticular formation

cerebellum

thalamus

basal ganglia

limbic system

hypothalamus

hippocampus

amygdala

cerebral cortex

corpus callosum

frontal lobe

parietal lobe

temporal lobe

occipital lobe

motor cortex

somatosensory cortex

association cortex

Broca’s area

Wernicke’s area

consciousness

REM (rapid eye movement) sleep