Neuronal degeneration - Study guides, Revision notes & Summaries

1. Which glial are responsible for maintaining the integrity of the extracellular fluid that surrounds neurons? A) Oligodendrocytes B) Astrocytes C) Microglial cells D) Stellate cells - B) Astrocytes 2. At what point do the sensory axons from the periphery enter the spinal cord? A) Central nuclei B) Ventral nuclei C) Dorsal root ganglia D) Ventral white matter - C) Dorsal root ganglia 3. Some neurons have long axons that stretch from one part of the CNS to another. What are these c...

PCE Studying Questions with Complete Solutions (conduction block ischemia); nerve dysfunction may be rapidly reversed or persist a few weeks, e.g., compression. of function and Wallerian degeneration distal to the lesion; with no disruption of the endoneurium, regeneration is possible, e.g., crush injury. and complete loss of function; reinnervation typically fails without surgical intervention because of aberrant regeneration (failure of regenerating axon to find its terminal end). ...

NCD previously known as: _______ - Answer -Dementia Similarities between Delirium & Neurocognitive Disorders? - Answer -Confusion/disorientation -Impaired memory & attention span -Anxiety & agitation -Sundowning What is Sundowning? - Answer -As the sun goes down, the client's presentations (manifestations) gets WORSE Delirium - Answer -ACUTE, RAPID onset of severe symptoms -Reversible -When identified, we don't know what's causing it -A MEDICAL EMERGENCY due to: Ca...

PCE Studying Questions with Complete Solutions Neurapraxia - ANSWER Injury to nerve that causes a transient loss of function (conduction block ischemia); nerve dysfunction may be rapidly reversed or persist a few weeks, e.g., compression. Axonotmesis - ANSWER Injury to nerve interrupting the axon and causing loss of function and Wallerian degeneration distal to the lesion; with no disruption of the endoneurium, regeneration is possible, e.g., crush injury. Neurotmesis - ANSWER Cutting ...

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Biology 235 UBCO midterm 2 Exam Questions With 100% Correct Answers what does the pyramidal tract control? - answerlearned motor actions The pyramidal tract works with the ______ to produce smooth, co-ordinated movements. Both are contralateral projections - answerextrapyramidal tracts The CNS develops a _______________. when neural folds fuse along the dorsal midline forming a hollow tube - answerembryonic neural tube what is anencephaly? - answerfailure to fuse at the rostral end of the...

Biology 235 UBCO midterm 2 Exam Questions With 100% Correct Answers what does the pyramidal tract control? - answerlearned motor actions The pyramidal tract works with the ______ to produce smooth, co-ordinated movements. Both are contralateral projections - answerextrapyramidal tracts The CNS develops a _______________. when neural folds fuse along the dorsal midline forming a hollow tube - answerembryonic neural tube what is anencephaly? - answerfailure to fuse at the rostral end of the...

PHM 450 Exam 2 Questions And Answers Graded A+. Describe .the .nervous .system. .What .types .of .cells .are .present, .and .what .is .the .function .of .each .cell .type? .- .correct .answer. . . . .consists .of .the .CNS .(brain .and .spinal .cord) .and .PNS .(somatic .and .autonomic .nervous .systems); .consists .of .neural .cells .and .glia .cells what .are .the .types .of .glial .cells .- .correct .answer. . . . .oligodendrocytes, .schwann .cells, .astrocytes type ....

Biology 235 UBCO midterm 2 Exam Questions With 100% Correct Answers what does the pyramidal tract control? - answerlearned motor actions The pyramidal tract works with the ______ to produce smooth, co-ordinated movements. Both are contralateral projections - answerextrapyramidal tracts The CNS develops a _______________. when neural folds fuse along the dorsal midline forming a hollow tube - answerembryonic neural tube what is anencephaly? - answerfailure to fuse at the rostral end of the...

types of PNI - Answer--entrapment or compression neuropathies -traumatic Phase I. Wallerian Degeneration - Answer-occurs distal to nerve injury. Everything shrinks and degenerates, shaun sheets, or endoneurial tubes, etc. Phase II. Neuronal Regeneration - Answer--Cell body and proximal axon stump enlarge -Axon bud migrates along Schwann cell column to endoneural tube. Neurapraxia - Answer-1st level of nerve injury The nerve is intact but the conduction is impaired. within 3 mon...