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Exam 2 Nero

Patho

TermDefinition
Acetylcholine found within the CNS, PNS, and ANS;can be an excitatory or inhibitory neurotransmitter, depending on what neurons secrets it.
Acetylcholine in ANS slows the heart rate, functioning as a inhibitory neurotransmitter
Acetycholine in PNS excitatory neurotransmitter at neuromuscular junctions
Serotonin 5- hydroxytryptamine; neurotransmitter chemically derived from tryptophan; primarily found in the gastroinstestinal tract, platelets, and in the CNS; FEELINGS AND WELL BEING
Dopamine located in the substantia nigra of the mid-brian basal ganglia region
Dopamine functions behavior and cognition, voluntary movement, motivation, punishment and reward, attention, working memory and learning
Gamma amino butyric acid (GABA) chief inhibitory neurotransmitter in the CNS, typically has a a relaxing, antianxiety, and anticonvulsive effect on the brain; decreases spasms and allow for muscle to tone
Myelin is a Protective sheath that is formed around axons of some neurons in the nervous system; insulator of the electrical signal; contains lipids and is considered white matter
Dienecephalon is the posterior part of the forebrain that connects the midbrian with the cerebral hemispheres; contains the thalamus and hypothalamus; relays sensory information between brain regions and controls many autonomic functions of the PNS; EMOTION & MEMORIES
Mid-brain involved in the functions of vision, hearing, eye movement & body movement; located within the brainstem
Basal gaglia portion of the midbrain the modulates voluntary motor function and routine behaviors.
Substantia nigra Portion of the basal gaglia that synthesizes dopamine
Seizure is a sudden, abnormal, disorderly discharge of neurons within the brain that is characterized by a sudden, transient alteration in the brain function.
Aura happens before seizure; unique sensation; strange light, unpleasant smell, or confusing thoughts or experiences
Ictal period episode of the actual seizure
Postictal period the phase after the seizure
Migraine periodic, throbbing headaches that are characterized by altered perceptions, nausea and severe pain; photophobia and phonophobia may happen
Positron emission tomography (PET) you can see imaging of the brain dopamine system with this test
Chorea brief , irregular, dace like movement in Huntington Disease
Athetosis twisting and writhing movements in Huntington Disease
Ataxia lack of coordination, imbalance and gait disturbance; damage to the cerbellum
Created by: BBaker01