EPPP—Neuro Written Exam Questions Correctly Answered.
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Eppp
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Eppp
EPPP—Neuro Written Exam Questions Correctly Answered.
Peripheral nervous system (PNS) - CORRECT ANSWER nerves that carry info from the sensory organs to the CNS & nerves that carry info from the CNS to the muscles & glands
divided into 2 parts: the somatic nervous system & the autonomic ner...
EPPP—Neuro Written Exam Questions
Correctly Answered.
Peripheral nervous system (PNS) - CORRECT ANSWER nerves that carry info from the sensory organs to
the CNS & nerves that carry info from the CNS to the muscles & glands
divided into 2 parts: the somatic nervous system & the autonomic nervous system
somatic nervous system - CORRECT ANSWER controls the actions of the skeletal muscles & is responsible
for voluntary movement. responds to signals from the senses
autonomic nervous system - CORRECT ANSWER contains nerve fibers that innervate the smooth
muscles, viscera, & glands. regulates activity that is primarily involuntary. changes in autonomic arousal
highly correlated with emotionality.
2 subdivisions: sympathetic & parasympathetic
sympathetic nervous system - CORRECT ANSWER part of the autonomic nervous system. activation
mobilizes the body's resources--"fight or flight"
parasympathetic nervous system - CORRECT ANSWER active during states of relaxation. deactivates the
organs & responses that the sympathetic system activates
Central Nervous System (CNS) - CORRECT ANSWER consists of the brain & spinal cord, both of which are
immersed in cerebrospinal fluid
spinal cord - CORRECT ANSWER carries info b/w the brain & the peripheral nervous system
all or none law - CORRECT ANSWER a neuron will only fire when it reaches its action potential via
stimulation. increased stimulation does not change the magnitude or speed of firing, but does impact
how often the neuron fires
, neurotransmitters - CORRECT ANSWER manufactured in the cell body, transported down the axon, &
stored in the terminal buttons in the little called vesicles.
acetylcholine (ACh) - CORRECT ANSWER found in the CNS, at the junctions b/w terminal buttons &
muscle fibers), & at certain synapses in the ANS
when found b/w nerves & the muscle fibers it has an excitatory effect causing muscles to contract;
defects in ACh transmissions = impairments in voluntary movement.
when found at the heart or respiratory muscles ACh has an inhibitory effect.
in the brain ACh associated with learning & memory
Catecholiamines - CORRECT ANSWER includes norepinephrine (noradrenaline), epinephrine
(adrenaline), & dopamine. these are associated with personality, mood, drive, sleep, & memory
serotonin - CORRECT ANSWER associated with anxiety, mood, eating, sleep, arousal, temperature
regulation, aggression, modulation of pain & migraine headaches
lack of serotonin connected to depression, OCD, PTSD, & aggression
excess of serotonin associated with Schizophrenia, Anorexia, & Autism
Gamma-Amino Butyric Acid (GABA) - CORRECT ANSWER most abundant neurotransmitter in the CNS.
inhibitory role: associated with anxiety, sleep, eating, & seizure d/os
low levels of GABA: anxiety, Parkinson's disease
deficits in the motor regions associated with Huntington's Chorea--dementia & involuntary jerky
movements in arms & legs
glutamate - CORRECT ANSWER major excitatory neurotransmitter in the CNS & is associated with
learning, memory, & long-term potentiation (transfer of info from short term to long term memory)
endorphins - CORRECT ANSWER inhibit or block feelings of pain by binding to opiate receptor sites
medulla - CORRECT ANSWER vital centers that control breathing, heart rate, blood pressure, & digestion.
damage usually = death
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