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Psychobiology
nus 471 exam 1
22
Nursing
Undergraduate 3
09/23/2012

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Term
psychobiology (def)
Definition
the scientific study of the relationships among the structure and function of the brain, biochemical and hormonal processes, genetics and environmental experiences and human behavior
Term
the cerebrum is comprised of what lobes?
Definition
frontal (1) parietal (2)
temporal (2) diencephalon
occipital (1)
Term
frontal lobe functions
Definition
o Higher thought
o Abstract reasoning
o Decision making
o Speech
o Voluntary muscle movement
Term
frontal lobe dysfunction
Definition
o illogical thinking
o uninhibited behaviors
o incoherent speech
Term
parietal lobe functions
Definition
o sensory function
o body position information
Term
parietal lobe dysfunction
Definition
o impaired spatial ability
o impaired body images
o self-care deficits
Term
occipital lobe functions
Definition
vision
Term
occipital lobe dysfunction
Definition
visual illusions and hallucinations
Term
temporal lobe functions
Definition
o judgement
o memory
o smell
o sensory interpretation understanding sound
Term
temporal lobe dysfunction
Definition
o aggressive and violent behaviors
o olfactory and auditory hallucinations
o language abnormalities
Term
what is the diencephalon comprised of?
Definition
thalamus
hypothalamus
Term
thalamus function
Definition
• receives and relays sensory information
• plays role in memory
• regulation of mood
Term
hypothalamus function
Definition
main visceral control center of the body and vitally important to body homeostasis
Term
hyopothalamus dysfunction
Definition
• autonomic nervous system
• body temperature
• food intake
• water balance
• biologic rhythms and drives
• hormonal output of anterior pituitary gland
Term
what is the function of the limbic system
Definition
“emotional brain”
• releases emotional responses
Term
what is the limbic system comprised of
Definition
• frontal cortex
• hypothalamous
• amygdala
• hippocampus
• brain stem
• autonomic nervous system
Term
amygdala
Definition
“linchpin of human emotion”
Term
what structures make up the hind brain?
Definition
pons
medulla
cerebellum
Term
pons function
Definition
• contains central connections of cranial nerves V-VIII
• center for respiration and skeletal muscle tone
Term
medulla function
Definition
pathway for all ascending and descending fiber tracts
Term
medulla vital center control
Definition
o heart rate
o blood pressure
o respiration
o reflexes:
swallowing, sneezing, coughing , and vomiting
o cranial nerves IX-XII
Term
function of cerebellum
Definition
involuntary movement
o muscle tone
o coordination
o maintenance of posture and equilibrium
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