Structure of the nervous system | Organ Systems | MCAT | Khan Academy 

A good mnemonic for afferent and efferent neurons is: Afferent neurons Arrive to the CNS and Efferent neurons Exit the CNS Hope this helps!

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I study using etymology because i wish to know how everything was named :D The word "cerebrum" is the Latin word for "brain." The Romans used the same word to refer to the "skull" (which houses the brain) and the "head" (which houses the skull). ... The word "cerebrate", meaning "to use the mind or think", comes from the Latin "cerebrum." mid 19th century: from Latin afferent- ‘bringing towards’, from the verb afferre, from ad- ‘to’ + ferre ‘bring’. mid 19th century: from Latin efferent- ‘carrying out’, from the verb efferre, from ex- ‘out’ + ferre ‘carry’. Cranium late Middle English: via medieval Latin from Greek kranion ‘skull’. Pons late 17th century: from Latin, literally ‘bridge’, (in full) ‘bridge of Varolius’, named after C. Varoli (1543-75), Italian anatomist. Medulla late Middle English (in the sense ‘bone marrow’): from Latin, ‘pith or marrow’. late 19th century: from Greek neuron, special use of the literal sense ‘sinew, tendon’. See nerve. late Middle English (also in the sense ‘tendon, sinew’): from Latin nervus ; related to Greek neuron ‘nerve’ (see neuron). late Middle English: from French or medieval Latin tendo(n- ), translating Greek tenōn ‘sinew’, from teinein ‘to stretch’. Old English sin(e)we ‘tendon’, of Germanic origin; related to Dutch zeen and German Sehne . late Middle English: shortening of Old French espine, or from Latin spina ‘thorn, prickle, backbone’.

when someone does good you need to commend them. very comprehensive video i must admit! great job!

Science class is ruining my youtube watch history

Well done and thank you! Man...this is a complex piece of our anatomy and something I need to understand better. This was a great place to start...you speak slowly with passion in your voice and deliberately as well. I enjoyed it...

No need for teachers in the US or anywhere in the world. Education should be offered online, and these videos from Khan Academy will make the student successful. Love the videos.

I'm getting my diploma in addiction studies and this video just made the last 4 hours of reading SOOOOOO clear to me now!!!! Thank you good sir!!!!

What my teacher taught in 3 1hr lectures that I could not understand at all, to watching this 9min video and learnt everything she was trying to teach, Thank you!

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And why do we have schools when we have this ? Oooooh the depression and anxiety....

This is really informative and entertaining at the same time... thanks for your good work

Really helpful! Keep it up!! Thanks so much for the videos. Really helped with A&P.

I found it very helpful with the beginning of my psychology course knowing the how the workings of the brain and where to find where out thought come from biologically

Absolutely loooove Khan Academy's videos, they help me understand everything. Just wanted to say that this guy sounds like Cleveland from Cleveland Show, which keeps it interesting for me :D Keep it up!

Will you make a video going more into detail regarding the hemispheres and the different layers that surround/protect the brain. ie, meningeal, epidymal, and all the sub layers? Thanks!

It is just amazing what you do here. I just love all these videos. I understand more of myself, of other people and simply - life. Thank you.

I from the bottom of my heart thank you mr.khan Its brilliant that ua carrying out.!

Thank you so much, this explains the structures of the brain perfectly for UK Nursing in Uni

This helped a lot. Thank you very much !

I love this, thank you!

this video is good because help in project thank you.

Than you Khan...love the information, sincerely appreciate it!

Thank you for this very helpful upload. Learned a great deal listening to you.

Simply, congratulations on such an amazing project. Excellent content and explanation.

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Thank you, it's brief and well detailed

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Thanks, we have an eog coming up and the teachers didnt have time to teach us a ton about certain systems, and i want them to get paid, especially my teacher since she has a baby on the way, really good.

This video is one the best videos that I have ever watched on khan academy 👌🏻

Great channel when I need a break from slides and textbooks. 👌🏽🧠😛

I really needed this my professor sucks

i like so much your videos ....very very help full

this video is great ! thankyou so much !

It was really helpful thanks for the video appreciate it.

It's really funny how I'm having a test tomorrow in the very different language and still watching this in English

It is really important to Identify the parts of brain Kr otherwise It would cause serious complications If we further study on brain and that's What U have done U really love tht way U teach in detail

the way i remember the diff between afferent and efferent is by the definition of Effervesce. When you look up the words definition on google it's this: Effervesce: ef·fer·vesce /ˌefərˈves/ Learn to pronounce verb 1. (of a liquid) give off bubbles. Sooo, efferent nerves effervesce action potentials away from the central nervous system

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Nice explanation....

perfect!

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efferent motor neurons are ventral on the dorsal root; whereas afferent sensory nerves are dorsal on the dorsal root

👌 perfect thanks

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Omg can this guy say "nerves" one more time please? 7:00

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I actually really like his voice

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is there any recommendation on how to watch these? Like take notes during or focus on the video?

Good review

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Nerves the way he pronounces it lol Thanks for the vid

yes

he even threw a little embryo in there ;) two birds with one stone baby!!

You sound like a cowboy. Which is nice. :P

ill pray for you Khan. I just dont think thank you is enough. I think we should pay you instead of those teacher we have.

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Thank u so much! All the teachers of Khan Academy explain so beautifully n make the topic soo easy

Good video

'purrfurry'...

Who else has to watch this for online school?

If you find his voice slightly monotone and hard to listen to, change the speed to 1.25. He sounds more upbeat but it's still at a pace that you can follow.

how many ways can you arrange the parts of the structure of nervous system?

Please, where can i find this video (and other neuronal system videos) on KhanAcademy website?

SIR PPLZ EXPLAIN DIGESTIVE SYSTEM

I have that strike feeling sensation from my brain to my foot ache sometimes it shoot on my spinal dont know what it is though can be anxiety?

من طرف داوود

What app do you use?

Soo what i can learn from these informations as a doctor??

who else is watching this for school

2:44 Waterboy.

हिन्दी में भी वीडियो बनाइये इसका

y e s

oh shit, water boy was right!

1:57

Make this video in hindi also

this video only gets views from schools forcing kids to watch it

Our teacher gave us homework to whatch this video!

Hi Mrs. Hall

is this sal's voice?

We can't understan the words very wll Am requesting khan academy to big size the letters

Was up RU-vid

Who else is watching for Mrs. Newman's class

Came from Sawyer ms 6 grade science class.

if the nerves in my feet are microscopic why does it still hurt so bad when i stub my toe

يوم ماتحطون ترجمه عربي لييييييششششش؟؟

Sounds like kharma medic

Pada porsi attiya swajan Chhadte na pari. Yet to day.

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im only here because I had a sub

Very easy

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Bacon

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i had to watch this for science class and it was the most boring video ive ever watched.

this was so boring to watch at school idk why they choose you to watch im sorry

It's really boring

hate it