Decreased Axoplasmic Transport Flashcards
Decreased Axoplasmic Transport theory is a __ based __ transport and exchange of macromolecular materials.
non impulse mechanism
intra-axonal
Decreased Axoplasmic Transport theory involves the neurotrophic relationship between __ and __.
Neurons
End organs/Target cells
Trophic substances are macromolecules produced in the neuron cell body, packaged by __ transported within the __ and released at the __.
Golgi
axon
synapse
__ substances are considered essential for the maintenance of proper tissue function.
Trophic (macromolecules)
Axoplasmic Transport is the __ form of transport carried in a bidirectional fashion.
faster
Axoplasmic Flow is the __ form of transport carrying materials only towards the axon.
slower
Axon aka nerve fiber carries __ away from the cell body.
nerve impulses
Most axons are enclosed in __ increasing speed of impulse transmission.
myelin sheath
Axons and __ are the two cytoplasmic protrusions from the neuron cell body.
dendrites
Which cytoplasmic protrusion is more restricted to the area surrounding the cell body?
dendrites (to receive signals)
No neuron ever has more than __ axon.
one
Axons are covered by __ membrane.
axolemma
Axon cytoplasm is called
axoplasm
Axons branch end is called
telo-dendria
The swollen end of axon (telo-dendria) known as the axon terminal joins __ and __ forming a synaptic connection.
dendron or another neuron cell body
Per Korr, a nerve is most vulnerable in what locations?
highly mobile joints bony canals IVF Fascial layers tonic/contracted muscles
concept explain in
Nerve compression hypothesis
Per Korr sustained high rate impulse-discharge increase __ affecting __ synthesis, protein turnover impairing axonal transport, trophic interchange with other cells.
energy demand
metabolism
context explained in
Sustained Receptor Hyperactivity
Wallerian Degeneration consequences of __ of axonal transport
interruption
Diffuse axonal injury interrupts transport causing degeneration to what part of the axon?
distal
processes is called Wallerian degeneration
Wallerian Degeneration hypothesis factors include direct mechanical insults such as
deformation of nerve or NR compression stretching angulation torsion
Name the potential theories linked to Wallerian degeneration
Nerve compression
Sustained hyperactivity
Korr’s theory of facilitation
