Dermatomes and Cutaneous fields

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Brachial plexus tutorial: • Brachial plexus
This video tutorial compares and contrasts dermatomes and cutaneous fields:
0:00. Introduction
0:30. Dermatomes and the brachial plexus
2:12. Anatomy of Google maps and sensation
3:09. Practice questions
4:08. Cutaneous fields and the brachial plexus
6:29. Practice questions
9:54. In a nut-shell
10:15. Acknowledgements

[@ashmano23]

For 4 years I struggled to understand the difference between dermatome and cutaneous innervation, but this video clarified it so well. I can’t thank you enough 🙏🏾😭

[@TheNotedAnatomist]

Glad it was helpful!

[@swagatkumarsingh2227]

Can you give me ur no. I hv doubts..can u make me understand 🙏🙏🙏🙏

[@mowsumibiswas1802]

seriously same to you

[@sarahvanwoy7150]

Thank you SO much. I've been pulling my hair out in medical school trying to understand this (terribly explained) concept, and in a 10 minute video you clarified what months and months of anatomy lectures have not. THANK YOU!

[@arthurlandissavingu6886]

Can I accuse you of being too in depth? You are too brilliant! Many thanks from a fourth year medical student.

[@karthikmothukuri4786]

Crystal clear concepts added with reinforced active testing. I love this channel for making my life easier !! Love from India !

[@robmemeoverlord6399]

Honestly, I am speechless...you have just made something that seemed so confusing so crystal clear with your brilliant presentation and analogies. I don't know why my lecturers never went over it like you did. Seriously, thank you.

[@TheNotedAnatomist]

Thank-you ... that is very kind :)

[@renzenriquez6813]

All of my previous understanding of what i though i understood of the brachial plexus was trashed by your brilliance. Youre the greatest anatomy teacher ever!

[@maven5653]

Everytime you say "shing!"... It sounds so funny 😂😂

[@mutazmohsin9966]

This video clarifies my doubts on the upper limb dermatomes. I would love to see a video on the lower limb dermatomes too doctor. Thank you

[@MegRivard]

I'm not sure why its taken me this long to comment but I friggin love you. Thanks so much for all of your videos, they're so hilarious and helpful. You rock.

[@maryumshahzad1751]

❤ Cant thank you enough for explaining this so thoroughly

[@rajanray7978]

you're dope doctor, you made us understand what even Gray's and other gold standard failed 👏

[@benjaminoblak528]

These videos are amazing!

[@AminAziz95]

Thank you sooo much. You open a new world of understanding for me

[@cb9493]

Best explanation ever!!! Thank you so much doctor!!!

[@abhasniraula4928]

Really top explanation, now its crystal clear to me. Thank you very much 🙏

[@vikkitoria97]

I could literally start crying right now. Was struggling with understanding this until you explained it so clearly. Thank you.

[@TheNotedAnatomist]

So glad

[@I_love_BTS_2025]

I wish you were our anatomy lecturer!
Thank you for the amazing videos!

[@bellabean7]

Favorite teacher still after two years of med school!

[@iluxman]

Dear sir. Thanks for sharing spectacular, understandable information.

[@danielsangombe8370]

thank you so much.... i struggled to answer mcqs concerning these in my last part 1 exam but now I understand

[@RA-om8ck]

Thank you for the video. At 5:44 you meant to say "these sensory neurons come from one dermatome, but are distributed by more than one peripheral nerve," not spinal nerve. At 6:11 you meant to say, "these sensory nerves come from one cutaneous field but go to more than one spinal cord level." There is a difference between a nerve and a neuron. But then you go on to say "if you injure a peripheral nerve... you loose sensation in a cutaneous field." PERFECT! Liked the video!

[@javeriaabbasi7108]

What in the sorcery

[@radimm5936]

Thank you, after 2 years of winging it I finally understand this clearly.

[@TheNotedAnatomist]

Glad it helped!

[@BlueLineofthesky]

Perfect lesson. Thank you!

[@mangajunction8762]

It was really helpful that I got clarity in this concept ✨

[@user-po9ff3fh5d]

Thank you for the excellent presentation, that's really help me a lot.

[@cometaire1]

i am so thankful i understand this concept finally. i was so lost before😧

[@shaesnell3938]

Thank you so much, clear as day, finally

[@AliAlmadan]

My favorite channel, helped me understand things I was so lost. Thank you so much 🐐

[@TheNotedAnatomist]

Happy to help!

[@amarveermalhi1925]

Thank you Dr. Morton.

[@andreacastano8090]

Thank you so much🙏 I never comment on videos, but this deserves all the likes and comments in the world thank you again!

[@TheNotedAnatomist]

You're very welcome!

[@studysongz19]

Great video and visuals!!

[@TylerB511]

This was KILLER

[@asunayuuki6925]

thanks a lot your so good i am so glade that in this world there is a good teacher like you

[@TheNotedAnatomist]

Wow, thank you!

[@asunayuuki6925]

@@TheNotedAnatomist hello again sir this time a wanna ask for a favor i wonder if you could make i video about sensitive receptors also i wanna ask you about the touching with pressing if it epicteitic or nociceptive thanks a lot

[@y64]

That was really fun and interesting, thank you!

[@TheNotedAnatomist]

So glad!

[@lukeshdoesntknow]

Great stuff!

[@mk-jo3sb]

i never comment but THANK YOU FOR THIS!!!!! YOU JUST MADE IT SO MUCH FUNNN

[@youreworthyourweightinavoc7189]

Thank you, this was brillo!

[@RB-rl3lo]

THANK YOU SO MUCH. THIS VIDEO HELPED ME

[@TheNotedAnatomist]

I'm so glad!

[@user-z5k]

Wow! Truly. Thank you so much!

[@TheNotedAnatomist]

You are so welcome

[@armikmuson5191]

Great. Thoroughly made job. Keep doing such videos. Wish success for chanel.

[@emmamartirosyan766]

Thank you very much❤️ You are awesome 😎

[@koko-ij6jl]

really good!!!

[@dobermanfunfun1891]

The best material. Thank you

[@TheNotedAnatomist]

You're very welcome!

[@mowsumibiswas1802]

thank u so much amn aro deep vedio chi, awesome

[@syedumar8290]

Thank you very much very helpful

[@madisonpendleton8857]

this is so amazing thank you so so much

[@TheNotedAnatomist]

You're so welcome!

[@cardiyansane1414]

Had to watch this three times 😅 finally got it 😂

[@petikovacs8109]

WOOWW THANKS!!!!!!!

[@emmycoffey400]

you're a hero! subscribed :)

[@anaszaib7200]

Thankyou so much I was unable to understand all the nerves of the upper limb because of confusion on dermatomes and cutaneous nerves.

[@lobatyavari3728]

You are perfect
❤

[@kaywoods46]

thank you

[@saraathriya8357]

Great video and the music at the end.... hope it is also by the anatomist!!!!

[@priyagurung882]

oh my god, thank you so much!!

[@TheNotedAnatomist]

You're welcome!

[@eleanorbilhorn4762]

Thank you for the clear explanations and active practice! One question... When you injure a ventral ramus (or 2), thereby injuring the distal dermatome (i.e. C8-T1 was an example in this video), you define that distal injury by following the lower trunk down to the ulnar and medial cutaneous innervations. What about the T8 & C1 contributions to the Radial and Median nerves? If the injury is proximal (at the ramus/root), aren't those peripheral nerves compromised as well?

[@punchikak2570]

thank you so much!

[@EWQWEQQD]

Fantastic presentation. Could I ask a favour that you do a similar presentation for the lower limb and the lumbosacral plexus? Many thanks !

[@TheNotedAnatomist]

Thanks for the suggestion ... i will add that to my docket of videos to make

[@ilovegod0106]

THANK YOU!!!!!!!!!

[@RafiqulIslam-yl9ed]

Thanks

[@asim9575]

superb

[@MsrReema1999]

what a legend

[@agenttoad4475]

Thank you

[@TheNotedAnatomist]

You're welcome

[@deedeedeadtree4215]

Well.....it's only taken several years but in 10 min and 57 seconds I finally understand now

[@maxx1669]

I left knowing more. ty

[@meryamlazrak1329]

thank you sir

[@goodbook6000]

Can we plz get some more practicing lectures that's amazing

[@Bamdeidz]

I freaking love you you beautiful man ur a genius

[@TheNotedAnatomist]

Haha … thanks 😊

[@rjm4031]

If someone has a sensory deficit in say the lateral part of the arm, how can you tell if it is C6 or musculocutaneous cutaneous nerve? Thanks

[@TheNotedAnatomist]

By touching the tip of the thumb

[@blessingskatontoka926]

❤

[@tazkhan556]

Where were you guys during medical school????

[@avinandandey6418]

This video cured my big sad

[@crazysox305]

So is motor function not affected at all?

[@ckorweng1]

i think theres an error from 5:42 onwards regarding "these sensory neurons come from one dermatome but are distributed by more than one spinal nerve"
it should be "... by more than one peripheral nerve" instead i think

[@nickpettey2006]

Is it just me or does the median and radial nerve placement switch throughout the video? Started with a diagram showing median over radial and proceeded to show radial over median ???? I've always seen MARMU not MAMRU.... please help clarify.

[@user-vn8ro9iz5x]

Thank you for this video! I just have a small question: what if a small branch of the peripheral nerve is injured and sensation is lost from that small area of the cutaneous field how is that detected when testing the cutaneous fields in a clinical setting ?

[@TheNotedAnatomist]

Any area of skin supplied by a cutaneous nerve or branch of that nerve will lose sensation if inured. For example, if the musculocutaneous nerve Is injured the lateral forearm will lose sensation. However if only a small branch of the musculocutaneous nerve is injured only that smaller area of skin will lose sensation.

[@westbrookwellness4366]

👍

[@ashafalimondal6084]

Brachial plexus injury right upper limb movement loss bike accident 2018 now possible treatment

[@dawoodsuliman4926]

Isn’t ventral ramus responsible for motor and dorsal for sensory? 😐
Around 4:00 you said the opposite

[@roccosiffredi5463]

sssssshhhiiinnngggg!!!!

[@EddieTheBoneSetter]

shingggg

[@hedwegg]

Dermatomes.

[@KhaiHarris]

Shingggg

[@dr.pushpachhangani7534]

Too simplified

[@pickle_256]

at this point I'm just watching this video for fun.

[@user-po9ff3fh5d]

Thank you for the excellent presentation, that's really help me a lot.