neuro-transmission

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neuro-transmission

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drduck
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05/30/07 - 12:00 PM

which of the following is not associated with electronic neuron to neuron transmission??

faster than chemical transmission
involves direct cell to cell commuunication
potentially bidirectional
receptor dependent

epica

05/30/07 - 12:17 PM

unique1
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05/30/07 - 12:22 PM

B or D

D ????

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new_n_lost
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05/30/07 - 12:27 PM

potentially bidirectional is bi directional if anything its gonna be unidirectional

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Luckyall
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05/30/07 - 12:57 PM

i go for B --> not involving cell-cel communication, bc of gap junctions
it is bidirectional, it is faster then chemical !

tompat
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05/30/07 - 04:16 PM

i dont think any kind of receptors are involved

doc179
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05/30/07 - 04:18 PM

mytime
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05/30/07 - 04:33 PM

d i think

GoodGirl
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05/30/07 - 05:39 PM

Is not associated :

that would be D.

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dncosta
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05/30/07 - 09:29 PM

#10

drduck
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05/31/07 - 01:30 PM

#11

small topics always missed..
yes answer is D...
no receptors involved in cell to cell neurotransmission.

drduck
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05/31/07 - 01:30 PM

#12

plz tell if explaination is required...

RayBerg
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05/31/07 - 01:34 PM

#13

Duck, are you from Oregon? Yes, if you can explain it..it would be nice! I did pick D...but I wasn't comfortable w/ any of the answers.

drduck
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06/01/07 - 06:49 AM

#14

not a big topic....
but giving u what i know
NEURONAL TRANSMISSION of 2 types....
CHEMICAL and ELECTRICAL
at electrical synapses...action potential is transmitted from cell to cell by direct flow of current...
rules...
as what NNL wrote...
conduction can occour in both directions, and there is essentially NO SYNAPTIC DELAY.
CHEMICAL MEDIATED TRANSMISSION occours only in one direction.
in chemical transmission there are receptors that are are responsible for the action of ACh and other chemical transmitters like biogenic amines...etc
but in ELECTRICAL TRANSMISSION the cells are connected to one another at the synapse thru......GAP JUNCTIONS........no receptors involved(which was asked in the question)
what else....yes, electrical transmission faster than chemical.
thats all....
hope that helps

Capricious
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06/24/07 - 03:24 PM

#15

paheli
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06/24/07 - 10:14 PM

#16

definitely d no doubt

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Jackofknives
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06/25/07 - 06:36 AM

#17

drduck wrote:

NEURONAL TRANSMISSION of 2 types....
CHEMICAL and ELECTRICAL
at electrical synapses...action potential is transmitted from cell to cell by direct flow of current...
rules...
as what NNL wrote...
conduction can occour in both directions, and there is essentially NO SYNAPTIC DELAY.
CHEMICAL MEDIATED TRANSMISSION occours only in one direction.
in chemical transmission there are receptors that are are responsible for the action of ACh and other chemical transmitters like biogenic amines...etc
but in ELECTRICAL TRANSMISSION the cells are connected to one another at the synapse thru......GAP JUNCTIONS........no receptors involved(which was asked in the question)

There is gap junction between 2 NEURONS??? Never heard of it. Where would those neurons be then? give an example

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drduck
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06/26/07 - 08:50 AM

#18

plz go thru the dicussions again.....its all given there...

gap junctions present in between cell not neurons....that is think how there is electrical imulse propagation in GI tract....mayenteric plexus etc........or better would be how there is impulse transmission in the heart?????
there are no neurons present in the heart....or are they????? grin

just read my post where i explained the answer.... smiling face

P4a99
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06/26/07 - 08:59 AM

#19

mmm,

i ddnt think of the impulse propagation in the heart as an example when i have read the Q... thanks

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