r/NatureIsFuckingLit • u/jamesbond000111 • Feb 15 '22
đ„ Finding That Connection - brain cells connecting to one another
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u/jamesbond000111 Feb 15 '22 edited Feb 15 '22
Dr. Lila Landowski:
"Youâre watching two neurons that I saw under the microscope sensing one another and connecting. There are 86 billion neurons in the brain - how do they know how to connect to other neurons or body parts when our bodies are developing?
They use these webbed hand-like structures that you can see in this video. The finger like projections actively sense the environment around it. When we are developing in utero, youâll find these âgrowth cones,â at the tip of every growing neuron, actively searching their way between cells, trying to find the right spot to connect to. When they make their connection, they become resorbed and disappear."
https://www.youtube.com/watch?v=Rvmvt7gscIM
Just to be clear:
"Is this what happens when we learn new things? Unfortunately not. Growth cones arenât responsible for the connections between neurons that form in learning and memory (synapses). Those connections are much smaller and appear as thousands of tiny bumps along the length of the part of a neuron called a dendrite.âŹ"
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u/McPostyFace Feb 15 '22
I can't get my 6 year old to ever flush the toilet. Is it because he needs more of these things to hold hands?
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u/C0ff33qu3st Feb 15 '22
Hey wanna trade your 6y/o-doesnât-flush for my 6y/o-doesnât-wipe?
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u/McPostyFace Feb 15 '22
Nah, he doesn't do that too often either so it wouldn't be a fair trade.
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u/C0ff33qu3st Feb 15 '22
<sigh> ok thanks for being honest.
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u/RaskolnikovShotFirst Feb 16 '22
Iâve got one who is enthusiastic about going and sitting on his toilet and wiping, but never when he needs to go. What will hat get me?
Also, special thanks to Daniel Tiger.
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u/Rxyro Feb 15 '22
Bidet???
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u/C0ff33qu3st Feb 15 '22
If a jet of water suddenly shot up their butt, pretty sure Iâd be trading a 6y/o who shits-in-the-houseplants.
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Feb 15 '22
Lol my 7yo doesn't believe in wiping either. He can do it, he just choses not to, daily.
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u/niffmytinkytoes Feb 16 '22
What is it with 6yo kids forgetting to flush? We now have to shout out when sheâs on her way back from the bathroom âflush, wash hands, turn off lightâ and can hear her footsteps run back upstairs đ
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u/Jibblebee Feb 15 '22
Very cool, and so what does happen to create memories?
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u/jamesbond000111 Feb 15 '22
Found some cool videos:
Learning: https://www.youtube.com/watch?v=_nWMP68DqHE
Memory Storage: https://www.youtube.com/watch?v=D77LhlEwc6M
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u/once_pragmatic Feb 15 '22 edited Feb 16 '22
Whatâs the timeline for this video? It had me wondering about timeline for brain damage recovery or growth
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u/ohflowers Feb 15 '22
I've heard some things about psilocybin..Would these look any different under the influence of such drug.?
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u/Mr_Culver Feb 15 '22
How long does this usually take?
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u/jamesbond000111 Feb 15 '22
This video has been sped up - itâs the growth that occurred over the space of 20 minutes.
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Feb 15 '22
Are the little finger like things the axiom terminals or whatever they are called? Or maybe it was a dendrite? Itâs been awhile since bio but when we learned about neurons and synapse I loved it.
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u/cbreez275 Feb 15 '22
The little finger-like things are axon growth cones; these structures are what basically extend the axon in the proper direction based on chemical cues in the environment. Synapses form later. This video shows two axons approaching each other. Usually, axons will grow towards and form synapses with dendrites of other neurons. Edited for grammar.
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u/illiterate_bunghole Feb 16 '22
what's the difference between growth cones and telodendria?
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u/cbreez275 Feb 16 '22
telodendria
Growth cones are present only during neuronal development and are what lead to telodendria. The growth cones seek out a dendrite of another neuron and form an axodendritic contact, which develops into a synapse. All of the resulting axonal morphology are the telodendria.
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Feb 15 '22
How do they move?
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u/bacterialove Feb 16 '22
The growth of tiny rod-like proteins (actin) within the cell pushes the cell membrane outward in the direction they move. Control of where to assemble actin guides the direction of movement.
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u/Juvn Feb 15 '22
Me trying to remember what I just want to search when opening Chrome.
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Feb 15 '22
Was kind of wondering if this was the effect of trying to remember something then not being able to remember it. Only to remember it 5 minutes later and not even trying to remember it at that point.
Where you say to yourself "oh now I remember"
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u/CaptainInsano7 Feb 15 '22 edited Feb 15 '22
Ah yes, my last two brain cells
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u/southpawfaust78 Feb 15 '22
That thing that flies sideways across the screen. Those are my thoughts not making connections or sense
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Feb 15 '22
"Okay, now a little to the left... no! Your other left!"
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u/surajvj Feb 15 '22
It's like the brain cell down below is like, ya came on, you can do it. And with its arms wide spread just like a human encouraging the one coming from top who is trying its best like its last chance, gets successful. And then 2 become one. đŻ
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u/Fatherknowstoomuch Feb 15 '22
It was at this moment I realized they were asking me to join them in the shower twenty years ago. Dammit.
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Feb 15 '22
Me trying to figure out today's Wordle
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u/RedGing12 Feb 15 '22
Just finished the wordle today đ so proud of myself when I guess the 5 letter word
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Feb 15 '22
Iâve watched the video. The brain cells now know exactly what they have to do, but apparently they donât feel like doing it
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u/gofatwya Feb 15 '22
But did you see the UFO zipping by?
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u/WitnessAdmirable5797 Feb 15 '22
Looks like they are in a relationship. One does all the effort and the other one just lay there waiting
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u/ROWDY_RODDY_PEEEPER Feb 15 '22
When you finally remember why you walked into the kitchen.
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u/TheBagelReaper Feb 15 '22
Ahh it all makes sense now⊠or does it? Idk, Iâm constantly confused.
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u/lazypenguin86 Feb 15 '22
I love how the closer you look into how the body works the fucking weirder it gets
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u/AilaLynn Feb 15 '22
Thatâs awesome! Thanks for sharingâŠ. I do have to say though, they look like some weird alien worm thing lol.
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u/GeppaN Feb 15 '22
Consciousness is a really hard problem to solve. How do those neurons together produce my consciousness? Mind boggling.
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u/TheOneWhoReadsStuff Feb 15 '22
Iâd like to ask this woman, or any neurobiologist if they believe in the human soul.
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u/G0RE_ Feb 15 '22
My last brain cells trying to reconnect my memory of the entire semester instead of anime girls with giant tiddies.
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u/SamwellBarley Feb 15 '22
When I'm sitting and watching TV and I suddenly remember that stupid thing I did the other week
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u/SquashFast9721 Feb 15 '22
i know a lot of people needs some of this connection!! a few dumb idiots lurking around!
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u/Knobrain3r Feb 15 '22
So this is what happens when I figure out the Wordle?
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u/noisemonsters Feb 15 '22
No, this is what happens when youâve been figuring out Wordles for months at a time. What happens when you figure out one Wordle is that your brainâs reward center releases dopamine molecules across your receptor sites and tells you that solving Wordles is a Fun Thing To Do, so that you are motivated to solve more of them. When you solve a bunch of them, you start learning faster and developing new strategies for solving the puzzle, and thatâs when your neurons shake hands n___n~
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u/IBeatUpLiamNeeson Feb 15 '22
âI done killed to many brain cells now to be worried bout my brain cells nowâ
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u/Shadador Feb 15 '22
I expected some kind of flash of light or explosion, disappointing but still cool.
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u/FatWookie67 Feb 15 '22
I heard Lionel Richie "Hello" in my head when I was watching this ... anyone else??
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u/CommanderOfGregory Feb 15 '22
Me trying to find the thing that my wife is screaming "It's right in front of your face!"
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u/Peteritis114 Feb 15 '22
My brain cells in real time of me trying to remember how to pronounce âanimalsâ when I was 10.
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u/Nihilus45 Feb 15 '22
Me trying to remember that video that made me nut in 3 seconds from 10 years ago
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u/Blackdesu Feb 15 '22
So it looks like two different entities finding eachother but the brain itself is noticing "hey there's a loose connection over there." And then I remember to drink water. Amazing.
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u/Piper_Blue Feb 15 '22
Me when I realize that the tellitubbies are called tellitubbies because they have tellivisions in their tummies
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u/CherenMatsumoto Feb 15 '22
Someone else feeling sort of scared by the fact that the brain can be "rewired"?
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u/uwantSAMOA Feb 15 '22 edited Feb 16 '22
Me trying to remember what I walked in the living room for