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Brain Parts
brain parts and their functions
35
Psychology
Undergraduate 1
09/15/2008

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Cards

Term
EEG (electroencephalogram)
Definition
traces and displays brain waves
Term
CT (computed tomography) scan
Definition
x-ray photographs of male
Term
PET (positron emission tomography) scan
Definition
shows brain activity thru brain consumption of glucose
Term
MRI (magnetic resonance imaging)
Definition
disorients atom spin, then uses reorientation to find concentrations in brain, can find movement of blood thru brain
Term
brainstem
Definition
oldest region, central core o/brain
Term
medulla
Definition
basic living control- heartbeat, breathing
Term
reticular formation
Definition
"netlike," controls signals and arousal
Term
thalamus
Definition
○ Top of brain stem
○ Paired, egg shaped
○ All senses cept smell
○ Hub
○ Electrical oscillations, sleep
Term
cerebellum
Definition
non verbal learning, involuntary movement
Term
Cerebral cortex
Definition
"Bark on tree," Outer covering
Term
Glial cells
Definition
guide neural connections, provide nutrients, "nanny" cells
Term
Frontal lobe
Definition
speaking, muscle movement, plans, judgment
Term
Parietal lobes
Definition
sensory
Term
Occipital lobes
Definition
visual areas, visual info from opposite field
Term
Temporal lobes
Definition
auditory
Term
Limbic system
Definition
donut shaped, center of brain
Term
Hippocampus
Definition
controls memory
Term
Amygdala
Definition
Almond shaped neural clusters, Aggression and fear, Perception and proccessing of rage and fear
Term
Hypothalamus
Definition
○ Below thalamus
○ Maintenance activities
○ Governs endocrine system via pituitary
○ Emotion
○ "reward"/"pleasure" centers
Term
Pituitary gland
Definition
part of endocrine system but linked to limbic system
Term
motor cortex
Definition
arch at back of frontal lobe, controls motion
Term
sensory cortex
Definition
front arch of parietal
Term
association areas
Definition
areas of the brain not receiving sensory info or directing muscular responses
- involved in higher mental functions
Term
visual cortex
Definition
located in occipital lobe, input from eyes
Term
auditory cortex
Definition
in temporal lobes
Term
Broca's area
Definition
controls language expression, frontal lobe, left hemisphere, directs muscle movements involved in speech, SPEAKING
Term
Wenicke's area
Definition
language reception, comprehension and expression, left temporal lobe, UNDERSTANDING
Term
aphasia
Definition
language impairment, usually caused by left hemisphere damage
Term
angular gyrus
Definition
transforms visual representations into auditory code
Term
plasticity
Definition
brain's capacity for modification
Term
corpus callosum
Definition
neural fibers connecting brain hemispheres
Term
split brain
Definition
two sides of brain are isolated
Term
endocrine system
Definition
chemical communication system, glands secrete hormones into bloodstream
Term
hormones
Definition
chemical messengers, affect tissues
Term
adrenal glands
Definition
above kidneys, secrete EPINEPHRINE (adrenaline), NOREPINEPHRINE- arouse body in times of stress
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