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Exam-NURS 5315 Module 7; Test Questions and Answers $17.99   Add to cart

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Exam-NURS 5315 Module 7; Test Questions and Answers

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Exam-NURS 5315 Module 7; Test Questions and Answers

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  • September 11, 2024
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  • Questions & answers
  • NURS5315
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Exam-NURS 5315 Module 7; Test Questions and
Answers

CNS made of Correct-brain and spinal cord




Peripheral Nervous System made up of Correct-12 pairs of cranial nerves + 31 spinal nerves




Afferent Nerves Correct-Sensory nerves that carry impulses from cells, tissues, and organs

to the CNS




Efferent Nerves Correct-Carry impulses from the CNS to the cells, tissues, and organs.




Neuron Correct-Basic functional unit of the nervous system; primary fuel source is glucose




Cell body Correct-(1) Most are in the CNS.


(a) Nuclei: When cell bodies are densely grouped together


(b) Ganglia/Plexuses: Groups of cell nuclei in the PNS




Dendrite Correct-Projections that collect info and direct it to the cell body

, Exam-NURS 5315 Module 7; Test Questions and
Answers


Salutatory conduction Correct-Myeline sheath is responsible for allowing impulses to flow

between the nodes of Ranvier resulting in an increased velocity of impulses




Axon Correct-(1) Conducts impulses to the next neuron


(a) Covered w/ a myelin sheath (lipid material) and are interrupted by nodes of Ranvier


(b) Nutrient exchange cannot occur through the myelin, but it can occur in the nodes of

Ranvier.




Sensory Neurons Correct-AFFERENT neurons that carry impulses TOWARD the CNS




Motor Neurons Correct-EFFERENT neurons that carry impulses AWAY from the CNS




Associated Neurons Correct-Transmit impulses from neuron to neuron (only in the CNS)




Mature Neurons Correct-Don't replicate. Injury to them in the CNS is permanent.

, Exam-NURS 5315 Module 7; Test Questions and
Answers


Axonal Reaction Correct-Process of peripheral nerve can self-repair (slow)




Neuroglia types Correct-astrocytes, oligodendroglia, microglia, and ependyma cells




Astrocytes Correct-Fills the spaces between neurons & surround the blood vessels. Part of

the blood brain barrier, provide the rapid transport of nutrients & have a role in scar

formation & seizures.




Oligodendroglia Correct-(1) Form the myelin sheath of the brain & spinal cord (CNS).


(a) White Matter: Myelin sheath is white aka "white matter".


(b) Grey Matter: Areas w/o myelin sheath, which is composed mainly of neurons.




Microglia Correct-Tissue macrophages specific to the CNS




Ependymal Cells Correct-Line the ventricles of the brain and the choroid plexuses & are

involved in the production of CSF.

, Exam-NURS 5315 Module 7; Test Questions and
Answers


Schwann Cells Correct-Responsible for formation of the myelin sheath in the PNS and

provide metabolic support.




Synpases Correct-i) Where signals are transmitted from one neuron to another.


(1) Consist of presynaptic and post synaptic membrane which are separated by the synaptic

cleft.


Impulses are transmitted across the cleft via chemical or electrical means




Neurotransmitters function and types Correct-i) Synthesized in the neuron & localized in

the presynaptic terminal.


(1) They're stored on one side of the synaptic cleft & their receptors are located on the

opposite side


(2) Chemical synapses only work in one direction.


-acetylcholine, monoamines, amino acids




Acetylcholine Correct-(a) Is excitatory & inhibitory.

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