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Exam (elaborations)

NUR 603- Exam 3 Neurologic System Part 1 NEWEST EXAM with verified detailed solutions

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NUR 603- Exam 3 Neurologic System Part 1 NEWEST EXAM with verified detailed solutions

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NUR 603- Exam 3 Neurologic System
Part 1 NEWEST EXAM with verified
detailed solutions

Axon - correct answer ✔Long projections that carry nerve impulses away from the cell body
|||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| ||||||




Dendrite - correct answer ✔Extensions that carry nerve impulses toward the cell body
|||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| ||||||




Myelin sheath - correct answer ✔Segmented layer of lipid material that insulating substance
|||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| ||||||




that tightly wraps the axon.
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1. cell body
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2. dendrites
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3. axon - correct answer ✔Name the three common components of a neuron.
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Within the CNS. - correct answer ✔Where are cell bodies located?
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Divergence - correct answer ✔The ability of branching axons to influence many different
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neurons.


Convergence - correct answer ✔When multiple branches of various neurons act on and |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| ||||||




influence a single neuron. |||||| |||||| ||||||




Peripheral Nervous System (PNS) - correct answer ✔Which are are neurons able to repair
|||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| ||||||




themselves? The peripheral or central nervous. |||||| |||||| |||||| |||||| ||||||

,False: The further away. - correct answer ✔The closer the injury from the cell body the
|||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| ||||||




more likely it will be able to regenerate. True or false?
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True - correct answer ✔An injury that occurs in the CNS is permanent. True or False.
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"All or none action potential response" - correct answer ✔What is the term for when the
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action potential only occurs when stimulus is strong enough? |||||| |||||| |||||| |||||| |||||| |||||| |||||| ||||||




Axon - correct answer ✔Presynaptic membrane |||||| |||||| |||||| |||||| ||||||




Dendrite - correct answer ✔Postsynaptic membrane |||||| |||||| |||||| |||||| ||||||




- correct answer ✔The binding of the neurotransmitter at the receptor site changes the
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membrane potential. (1) The postsynaptic neuron can be excited (depolarized; excitatory |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| ||||||




postsynaptic potentials). or (2) the postsynaptic membrane can be inhibited (hyper |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| ||||||




polarized; inhibitory postsynaptic potentials) |||||| |||||| ||||||




the number and frequency of excitatory and inhibitory potentials that a postsynaptic
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neuron receives. This is called summation. - correct answer ✔What does the occurrence of
|||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| ||||||




an action. potential depend on?
|||||| |||||| |||||| ||||||




The medulla oblongata and the pons. - correct answer ✔What structures are housed in the
|||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| ||||||




midbrain?


The cerebellum - correct answer ✔What structure in the brain is located posterior of the
|||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| ||||||




midbrain?


Pre-motor area (Brodmann Area 6) - correct answer ✔Area coordinating muscle |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| ||||||




movements.

, Primary motor area (Broadman area 4) - correct answer ✔Area that controls motor function
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Broca Area (BA 44) - correct answer ✔Area of the brain that controls speech and language
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processing


Parietal Lobe - correct answer ✔Area of the brain that controls sensory perception and
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association.


Occipital lobe - correct answer ✔Area of the brain that controls vision and visual
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associations.


Temporal lobe - correct answer ✔Area of the brain that controls auditory input and
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associate, memory, and smell. |||||| |||||| ||||||




Wernicke's area - correct answer ✔Area of the brain that controls reception and
|||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| ||||||




interpretation of speech |||||| ||||||




Insula - correct answer ✔Area of the brain responsible for processing emotional
|||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| ||||||




information.


Limbic system - correct answer ✔Area of the brain that mediates emotion, long term
|||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| ||||||




memory, primitive behavioral responses, reactions to emotions, motivation, mood, feeding,
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smell.


Thalamus - correct answer ✔Area of the brain that relays sensory information
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Hypothalamus - correct answer ✔Area of the brain that controls the autonomic nervous |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| |||||| ||||||




system, body temperature, endocrine function, adjust emotional expressions.
|||||| |||||| |||||| |||||| |||||| |||||| ||||||

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