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

Created by Matthew Barry Jensen.

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[alip]

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

Hope this helps!

[christianuy]

Khan is literally the best person in education! He really should win a nobel prize of education or something! he ris revolutionizing education 

[Bhuji]

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’.

[timikadeterville]

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

[mattkieselstein]

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

[tammym]

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.

[Keriys]

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!

[sabrinafaer]

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...

[aardrarageesh]

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

[michaelm]

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

[faithybear]

Science class is ruining my youtube watch history

[Pisceswildfire]

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[cateringsoul]

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

[mercedescullinan]

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!

[aishin]

No but seriously what would I do without Khan Academy?

[sydthesadman]

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

[hhu]

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.

[h.]

I really needed this my professor sucks

[thejourneytv]

❤❤❤❤ You far better than my instructor. Pls teach my instructor

[studentnursesaima]

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