Motor unit | Organ Systems | MCAT | Khan Academy

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Опубликовано:

8 сен 2024

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Комментарии : 38

@melodyhall9251 9 лет назад

I am taking a physiology course online and I find having videos like this is extremely helpful! This video is very well explained and also uses good visual cues. It is also very helpful b/c it uses the same terminology as the course

@eswarpandiarajan6214 6 лет назад

Melody Hall I

@Nephrologist 6 лет назад

_9 4Melody Hall nvbv wyrvgcgrrrqrrrssifr yrrhrw

@kennethroberson854 9 месяцев назад

I'm taking health and nutrition and I find the video more compelling than about how helpful this can be and uses great cues!

@jankisolanki4544 6 лет назад

Very well described.... Thank you ☺

@Bhuji 3 года назад

Etymologies ate 16th century: from French (verb), (noun), from late Latin , from Greek, ‘lack of food’, from ‘poorly nourished’, from ‘without’ + ‘food’. The specific epithet is derived from the Latin fascicularis 'in bundles' or 'clustered', referring to its habit of growing in clumps. Twitches happen in bundles? I guess, not sure, doesn't matter either, we get the meaning for this one. hypo-under Meaning: "tone" (from PIE root *ten- "to stretch") + abstract noun ending -ia. See definitions of . early 16th century (as a noun denoting reflection): from Latin ‘a bending back’, from ‘bend back’ (see reflect). late 16th century: modern Latin, from Greek, neuter of ‘dried up’, from ‘dry up’.

@noorzeba6176 6 лет назад

Too good explanation..short n to the point..👍made it v clear..thank you

@kuchbhikuchbhi4539 3 года назад

Which one is a part of motor unit? A. Dorsal root B. Peripheral nerve C. Anterior horn cell D. Muscle fiber Please answer ?

@asma-iw8vf 2 года назад

Muscle fiber I guess

@noorzeba6176 6 лет назад

Can u plz explain whats the basic difference between pyramidal and extra pyramidal tracts?

@iddoitalloveragain 5 лет назад

This is the best video ever

@stevemagellen3453 6 лет назад

great use of using digital diagrams and illustrations, and your cadence in speech was good.

@amycarter6487 10 лет назад

Well explained. Thank you!!!

@dinosaurtattoo 10 лет назад

Well commented... Thankyou

@youtuber-nx5en 3 года назад

Yepp!!

@tuckycat92 7 лет назад

Thank you!

@operationmindfuck7145 4 года назад

So the amount of electricity flowing through the nerve determines how much the muscle will contract?

@jseanbrooks1 2 года назад

No. For clarification on this look up the all-or-none principle. The amount of charge has no effect on stimulation summation. Only the NUMBER of action potentials fired. You could also read up on temporal summation vs spatial summation.

@wendy8791 7 лет назад

1. If a person is diagnosed with motor neuropathy does this refer to a lower motor neuron disorder? 2. Does motor neuropathy refer to the peripheral nervous system? Thanks

@manofgod7622 3 года назад

This guy’s been waiting for 3 years. Can someone answer his question?

@sw_antoine Год назад

@@manofgod7622 5 years, he really deserves an answer now

@komal12h53 Год назад

@@sw_antoine 6 years.. Bro need help.. Please answer

@vivekchaudhary5948 9 лет назад

thank u .......

@user-zj5tu4cc6y 5 лет назад

شرح جميل 👍

@9-volt247 8 месяцев назад

English Translation: Nice explanation👍

@lizajacquelinearaza9392 4 года назад

*wow*

@opiumyeah123 9 лет назад

Is the size of the motor unit at all related to whether its a fast or slow twitch muscle?

@manofgod7622 3 года назад

Yes, big motor units contain big number of fast twitch muscle fibers and small motor units contain small number of slow twitch muscle fibers.

@zackhades641 6 лет назад

When you're watching to study for a biomed exam but he's basically describing your current ongoing symptoms. That sad "Aha" moment.

@esmfamil5086 3 года назад

what's the difference between hypotonia and atrophy?

@iammoonjooyoung 7 лет назад

Lower Motor Neuron. Neuromuscular Junction

@MajinSane 6 лет назад

fucking top video mate. im training to be a personal trainer and the training modules arent very clear on this subject, so for the assement i've spent about an hour searching for a descriptive source/ video. thanks heaps

@mayanksingh8781 2 года назад

Is there any way to increase motor neuron

@smssuper 8 лет назад

thanks

@gabrielllanes404 9 лет назад

when u increase the number of muscle cell, does that mean u form new motor units that attach to the new muscle cell?

@SaimonFictureNadiaze 9 лет назад

Gabriel Llanes no, what i believe is when you increase the number of muscle cells by working out, you form more actine + myosine filaments. no new motor units will be formed, but the contraction of the muscle will be stronger due to the higher amount of acetine and myosine and thats the reason you'll feel stronger and can lift up heavier things.

@manofgod7622 3 года назад

@@SaimonFictureNadiaze what you described is hypertrophy. But I think he asked about hyperplasia

@SaimonFictureNadiaze 3 года назад

@@manofgod7622 Oo okay - I'm sorry - could you provide me the correct answer :)