Brain- IB Psychology (Ohara)

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Terms in this set (...)

cerebral cortex
outermost layer of the brain and controls higher level thinking (reasoning, memories)
corpus callosum
a thin band of tissues inside the fissure
fissure
break in the brain
left hemisphere
controls the right side of the body (speech, language, logic, writing)
right hemisphere
controls the left side of the body (spatial reasoning, art, music, emotions)
thalamus
thalamus
acts as a relay station to send incoming and outgoing messages to appropriate areas in the brain
hypothalamus
hypothalamus
controls hunger, pleasure, thirst, rage, and sexual desire
cerebellum
cerebellum
helps you stand upright and keeps your movements coordinated
limbic system
involved with basic emotions and memory
amygdala
involved with basic emotions and memory
hippocampus
where new memories are made
reticular activating system
reticular activating system
keeps track of nerve impulse activity and helps regulate how alert or sleepy we feel
neuron
a nerve cell that is the smallest part of the nervous system
neuron
dendrites
branch off the body of the neuron and receive impulses from other neurons
axon
gather impulses from dendrites and carry them to other neurons
axon terminal
end of axon
synapses
the space between the axon of the sending neuron and the dendrites of the receiving neuron
presynaptic
before the synapse
postsynaptic
receiver of message
neurotransmitter
messenger molecules
acetylcholine
muscle contraction, development of memory in the hippocampus
dopamine
voluntary movement, learning, feelings of pleasure
endorphins
pain reliever
serotonin
sleep, arousal levels, emotions
central nervous system
the brain and spinal cord
pituitary gland
master gland, determines how tall or short someone is
gonads
sex glands that produce either sperm or eggs used in reproduction
thyroid gland
controls metabolism
adrenal gland
secretes adrenaline into the bloodstream
frontal lobe
awareness of ourselves
prefrontal lobe
mentally travel in time
frontal association area
personality, forms complex thoughts
brain stem
medula obingata
gather brain signals to send to the rest of the body
pons
regulate body movement, connections between the rest of the body and the cerebellum
parietal lobe
interprets sights sounds and emotions