yo cell type question

[theedaddy77]

which cells have "intercellular conductivity of action potentials"

i thought muscle but i was wrong any idea?


also
"12. A rectifier is an electrical device that allows current to
flow only in one direction. In human physiology, an
analogous device is the
A. axon.
B. dendrite.
C. synapse.
D. Schwann cell.
E. spinal nerve.
"
i understand why it is C but why not A?

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[Altimeter88]

I would think neurons.

 

[HoangDDS]

Not A because even though the net ion (mainly Na+) is flowing down the axon away from the cell body towards the end terminal there is still minimal ions diffusing back and forth at unmyelinated areas.

which cells have "intercellular conductivity of action potentials"

i thought muscle but i was wrong any idea?


also
"12. A rectifier is an electrical device that allows current to
flow only in one direction. In human physiology, an
analogous device is the
A. axon.
B. dendrite.
C. synapse.
D. Schwann cell.
E. spinal nerve.
"
i understand why it is C but why not A?

 

[HoangDDS]

Hey and regarding which cells have intercellular conductivity-- Is it pacemaker cells? Pacemaker cells like cells on your heart has rhythmical impulses.

 

[DRHOYA]

which cells have "intercellular conductivity of action potentials"

i thought muscle but i was wrong any idea?


also
"12. A rectifier is an electrical device that allows current to
flow only in one direction. In human physiology, an
analogous device is the
A. axon.
B. dendrite.
C. synapse.
D. Schwann cell.
E. spinal nerve.
"
i understand why it is C but why not A?

For you first question I would say Neurons, due to the axons.

For the second question, I agree with HoangDDS, in that a tiny amount of ions can flow back. Also, axonal transport can be either retro or anterograde (toward or away from the soma). C is pretty clear though.