Physiological Flashcards
(49 cards)
Thiamine deficiency leads to Korsakoff’s syndrome, which results in damage to neurons in the _____ and ______
thalamus and mamillary bodies
Globus pallidus transmits information to the ______
thalamus
functions of the basal ganglia include:
initiation and control of voluntary movements, procedural and habit learning, cognitive functioning (attention/decision-making), procedural and implicit memory, and emotions
The limbic system is made up of the amygdala, ______, and ______
cingulate cortex; hippocampus
the cingulate cortex is involved in _____
attention, emotion, and perception and subjective experience of pain
PTSD has been linked to hyperactivity in the amygdala and _______ in the ________
hypoactivity; ventromedial prefrontal cortex
Gerstmann’s syndrome results from damage to the ______ lobe and symptoms include: ________
parietal; finger agnosia, right-left disorientation, agraphia (a loss of writing skills), and acalculia (a loss of arithmetic skills).
Damage to certain areas of the __________ lobe causes perseveration, which involves repetition of the same response or action when it’s inappropriate to do so in a variety of situations and on a variety of tasks
frontal
arcuate fasciculus
connects Wernicke’s area to Broca’s area
Broca’s area is found in the _____ lobe, whereas Wernicke’s areas is found in the ______ lobe
frontal; temporal
ideomotor apraxia
damage to left parietal lobe; inability to perform a motor activity in response to a verbal command
damage to the dorsolateral PFC results in:
dysexecutive syndrome: impaired judgement, insight, planning, and organization
damage to the orbitofrontal PFC results in:
disinhibition syndrome: behavioural disinhibition, distractibility, emotional lability, poor impulse control, and impaired social insight
damage to the mediofrontal PFC results in:
apathetic-akinetic syndrome: pseudodepression, reduced emotional reactions, motor behaviour, and verbal output, impaired motivation ans sponteneity
a drug that increases which neurotransmitter is likely to be most effective in treating OCD?
serotonin
partial agonist
produce similar (but weaker) effects of a neurotransmitter
which dopaminergic pathway is involved in emotion, motivation, and executive cognitive functions?
mesocortical
which dopaminergic pathway plays a key role in production of purposeful movement?
nigrostriatal
inverse agonist
produces the opposite effect of a neurotransmitter
Myasthenia gravis is an autoimmune disorder that causes degeneration of ______ receptors at neuromuscular junctions, resulting in severe muscle weakness and fatigue
Acetylcholine
glutamate excitotoxicity plays a role in many disorders including:
seizures, stroke, Alzheimer’s, and Huntington’s
retinal disparity
the two eyes see two different views and the closer an object, the greater the disparity
convergence
the tendency for the eyes to turn inward as an object gets closer and vice versa
gate control theory says that pain can be relieved by ________
applying heat or cold to the affected areas, using distraction techniques, guided imagery, or hyponosis