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AP Psychology 2.1 Biological Bases of Behavior 7 Views
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Description:
AP Psychology 2.1 Biological Bases of Behavior. Neuronal extensions that reach out to other neurons are called what?
Transcript
- 00:03
And here's your shmoop du jour brought to you by branch like
- 00:06
extensions just in time for the holidays here's our question neuronal branch-like [Man giving woman hair extensions]
- 00:12
extensions that reach out to other neurons are called what and here are
- 00:18
potential answers.....Well
- 00:23
let's start this one off by going back to elementary school and busting out the [Students pull out crayons in classroom]
Full Transcript
- 00:26
crayon that's right we're going to do some drawing, does this illustration look
- 00:31
very branchy to you, no? well you're probably thinking it looks a bit more
- 00:36
like a teardrop or a sort of crooked eyeball or maybe even a cell body [man with a crooked eye]
- 00:40
containing ribonucleic acids proteins and the cell nucleus...Okay that might
- 00:45
be a bit of a stretch but it's right because what we've drawn here is A) the
- 00:49
soma or cell body not very branch like and not our answer all right here's
- 00:54
wrong number two Hershey's kiss in a gummy worm maybe funny little gnome hat [A hershey's kiss and a gummy worm]
- 00:59
floating above a wave of strawberry jelly not likely branch like no way nope [Gnome floating in a bowl of jelly]
- 01:06
this right here is a synapse a structure that permits the neuron to pass
- 01:10
electrical and chemical information other neurons no good - Next up sorry to [Man looking disappointed]
- 01:14
disappoint you this isn't a diamond necklace and it's also not very branchy
- 01:18
that's because we've just drawn an axon whose purpose is to transmit information
- 01:24
away from the cell body to different neurons well how about this looks pretty [Information sent away from cell body to other neurons]
- 01:29
similar to the previous drawing right well that's because it's a myelin sheath
- 01:33
whose purpose is to protect the axon, also not our answer okay one more then
- 01:38
we'll put crayons away those very branch like branches are actually the dendrite [A dendrite cell]
- 01:43
which branch out in order to receive information from other neurons so C) it
- 01:48
is and just in case we haven't said it enough - branch branch branch branch branch
- 01:52
okay crayons away now back to serious stuff time to break out the markers [Students put crayons back and take out markers]
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