NRSG 3420 ADULTS 2 EXAM 2 QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS LATEST UPDATE 2024/2025
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Course
NRSG 3420
Institution
NRSG 3420
NRSG 3420 ADULTS 2 EXAM 2 QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS LATEST UPDATE 2024/2025
Nervous System is Composed of
-Central nervous system (CNS)
-Peripheral nervous system (PNS)
CNS
Brain and spinal cord
PNS
-Cranial and spinal nerves
-Autonomic Nervous System
Neuron
-A nerve...
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NRSG 3420 ADULTS 2 EXAM 2 QUESTIONS AND
ANSWERS WITH COMPLETE SOLUTIONS LATEST
UPDATE 2024/2025
Nervous System is Composed of
-Central nervous system (CNS)
-Peripheral nervous system (PNS)
CNS
Brain and spinal cord
PNS
-Cranial and spinal nerves
-Autonomic Nervous System
Neuron
-A nerve cell; the basic building block of the nervous system
Axons & Dendrites
-Axons: Carry Impulses away from nerve cell
-Dendrites: Carry impulses toward the cell
Brain Structures
-Cerebellum
-Cerebrum
-Brainstem
,Cerebrum Hemispheres
-Temporal
-Parietal
-Frontal
-Occipital
Brainstem composed of
-Midbrain (hypothalamus, thalamus)
-Pons
-Medulla
Cerebral Circulation is determined by
Cerebral blood flow is determined by:
-Viscosity of blood
-Vasodilation
-CPP (cerebral perfusion pressure)
Autoregulation
Automatic adjustment of blood flow to each tissue in proportion to its requirements at
any given point in time
-Maintained by cerebral blood flow: Cerebral arterioles, mean arterial pressure (MAP)
Mean Arterial Pressure (MAP)
Perfusion depends on BP & CO2
Normal MAP: 70-100
<60 peripheral organs not perfused
, <50 Brain not perfused
*Critical to maintain normal MAP w/ ^^ICP*
Neurological Assessment
Subj/Obj. data
-Physical exam: Mental status, Motor sys./cerbellar function, sensory sys., reflexes,
cranial nerves, DTR (0-4 w/ a score of 2 as normal)
Autonomic Nervous System composed of
-Parasympathetic nervous system
-Sympathetic nervous system
-Enteric system (digestive process)
Parasympathetic nervous system
REST & DIGEST
-Constricts pupils
-Saliva production
-vvHR
-Stimulates GI/GU
-Promotes erection of genitals
Sympathetic nervous system
Fight or flight
-Dilates pupils
-^^HR
-Stimulates epi & norepi., glucose release
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