Autonomic Nervous System

Noahthebeast09 Says:

Mar 2, 2011 - In the sympathetic pathway a preganglonic neuron is short and the postganglonic neuron is long, in the parasympathetic nervous system the preganglonic neuron is long and the postganglonic fiber is short they are not the same length as this figure shows.

scanme214 Says:

Apr 29, 2011 - OMG i love you!!! now i see the light

samachet Says:

May 21, 2011 - But you see the different lengths on the global diagram, it expressly shows this difference, Watch again!

MrDevin666 Says:

Jun 6, 2011 - lol in high school and I think i'll be WAY ahead of the class from this. Is this university level?

TimmysMummy Says:

Jun 14, 2011 - I think its to make the mssg more general; neurons go to a ganglion & their message is picked up by lots of postganglionic neurons. so if we r in flight/flight mode, the general message is sent2 most of the digestive system 2 stop workin while we RUN. In somatic we only want to move certain muscles at a time... eg biceps to do biceps curls, If we had ganglions the message wld get all mixed up and sent to other muscles aswell so movement wouldnt be as precise just movement randomly!

TheNUTRO247 Says:

Jul 14, 2011 - So why do we have ganglion in the ANS unlike the somatic?

hoangvinh408 Says:

Jul 17, 2011 - i love you so much too. I saw that lght after the video..thank you

ivicapavlinic1 Says:

Aug 16, 2011 - brilliant cheers from NZ

CzarThePlezer Says:

Oct 19, 2011 - Because the somatic or voluntary pathway only has 1 afferent neuron that innervates skeletal muscle.

0arabian0princess0 Says:

Oct 29, 2011 - That was veryyyyyyyyyyyyy Helpful Thank u sooooo much love n respect

re1ntyes Says:

Nov 12, 2011 - That is not much of an answer... Saying that it is so because the other pathway doesn't have it does not clarify anything: couldn't the preganglionic neurons just synapse directly onto the post~ ? And if not, why not. That is the question. For an answer, see TimmysMummy's answer below.

CzarThePlezer Says:

Nov 14, 2011 - Actually it is an answer, maybe not as thorough as you would like it to be, but that's subjective

misdetermined Says:

Dec 14, 2011 - Very very helpful

ddill8 Says:

Jan 9, 2012 - I love the penguin professor!

xtremetom180 Says:

Jan 22, 2012 - great video thanks

thejameskan Says:

Jan 26, 2012 - great video thanks

youngspiritsinging Says:

Jan 27, 2012 - now this teacher is amazing and clear!!! wish mine was as good.

princewillip Says:

Feb 5, 2012 - I think I'm in love with you.  Brilliant refresher! :) <3 xxx

19Tranc3r92 Says:

Feb 14, 2012 - One neuron can talk to more than one other neurons, therefore exciting and/or inhibiting multiple neurons at once. :)

pratikbhabhor Says:

Feb 24, 2012 - Thank u 

Selimagick Says:

Feb 28, 2012 - Because the somatic has only a single efferent neuron and the autonomic has multiple efferent neurons. It is at the ganglion where the neurotransmitters are released and altered.

Interactivemedicine Says:

Mar 3, 2012 - keep posting videos please :) i love the way yo explain things

Teghead Says:

Mar 19, 2012 - You crazy Americans with your senapses and your ganglans.

Renku07 Says:

Apr 12, 2012 - Yes, it was very helpful. Thank you very much.