Axilla anatomy and thoracic outlet syndrome

[@alfyndiritu3514]

I really love gross anatomy but sam makes it easy to understand it. Saying thank you is barely enough to express my appreciation for all your work.

[@Askify]

My transcript notes of the video: 00:01 Hello right uh we're going to talk about the axilla also known as the armpit on this uh bony boy here we can only see the bones but we have muscles on top of the bones and when you lay the muscles on here you 00:16 make a pyramidal space in here through which a number of structures pass so yeah sure the armpit or the axilla the armpit is covered in hairy skin it makes some interesting smells that sort of thing but the axilla anatomy i'm really 00:31 interested in is what is in here what the borders of the axilla what runs through the axilla and it's important because it narrows up here and we get something called thoracic outlet syndrome so what might 00:46 get squashed and how might it get squashed and how might that manifest itself and that sort of thing all right the anatomy of the axilla all right this is tricky i got this this fella balanced here but 01:04 that shoulder region upper limbs going off here thorax and then i mean i know you've got an axilla but i wanted to show you look up 01:14 here so we're forming uh like a pyramid it's got four sides to it it's broad down here we're actually missing one of the big muscles we're missing pectoralis major 01:26 this guy here we have like pectoralis we have big muscles here big muscles here in the and the scapula we've got the um body wall here we've got the humerus 01:38 here so all of those things are forming this pyramid which actually you know changes shape as you move your upper limb at the shoulder and then things are going through the axilla through this 01:52 pyramid and at this end they're in the thorax and the neck and at this end they're supplying the upper lips we're talking about nerves going to the upper limb arteries go into the upper limb veins 02:05 coming from the upper limb lymph nodes and that sort of thing the other big thing that's in here is fat so fat is the great space packer in the body right so there's fat in here filling this space 02:17 and all of these structures are running through it that's quite good as well because it moves quite nicely and gets squished and that sort of thing but that is the axilla okay so what are 02:27 the walls of the axilla the anterior border of the axilla is pectoralis major and pectoralis minor so if you run our hands but if you 02:41 right so you see where my thumb is there my thumb there that's the anterior border of the axilla you've got a squidgy muscle there you can feel right that's what we're talking about excuse me that's pectoralis major 02:54 forming the anterior wall of the axilla there immediately then we have the thoracic cage so we've got the ribs we've got the intercostal muscles and 03:06 we've got serratus anterior they're forming the medial wall posteriorly deep in there which we might have a look at on another model in a moment we've got the scapular back here right 03:21 so there's the scapula so the deep surface of the scapula is back in there and that's covered by subscapularis and then we also have 03:32 terra's major so then if you feel the the posterior wall of your axilla that is teres major here in here 03:45 and then the lateral wall is the humerus and you can imagine that when the arm is beside the body everything in this space is really really well protected when you abduct 03:58 the upper limb from the body then the structures in here become a bit vulnerable and look the structures in the medial upper limb also become a bit vulnerable just to look at that again on an upper 04:11 limb model this is a right right upper limb so this is anterior so here we have pectoralis minor and major here with petroleus major forming To get the full transcript and PDF with screenshot - Get Askify chrome extension

[@affanfirozkhan4249]

If anatomy was taught like this it would be everyone's favorite subject!

[@daviesaruwon7212]

I just got to Axilla anatomy while studying my syllabus and was wondering why you had no videos on it, only to come online to see you've uploaded this video... you're doing so great

[@WeradahMohamed]

Just unbelievable.. THANK YOU SO MUCH MR.sam I've been learning from your channel since my first year in medical school and I'm an intern doctor applying for MRCS in few month, you're gifted please never stop making these amazing videos.

[@rowelespena906]

Thank you so much again, Sam! Hopefully you can share to us how you are able to teach so effectively! The world needs teachers like you man! So much love from the Philippines!

[@godwindabere1677]

Thank you Mr Sam for making anatomy more relatable

[@Rfans19]

You are the man for clear visualisation of all the parts of our body 👅👁️🥰🥰 and you are not Sam you are the jacck 😅scientist in your field 😍😍😍🔥🔥🔥

[@hollymclemore1212]

I was diagnosed w/TOS several years ago. Dr at the time suggested I have my first rib removed. I declined. Because I’ve left it untreated for so long I’m Now Finding it’s increasingly difficult to relieve the intense numbness and pain in my hands, palms & arms. Effects my sleep waking me 4-5 times a night because the numbness is so intense and my daily life. It’s hard to use your hands when they are so numb and hurt so bad from the numbness. It’s my entire hand on both sides, my palms. When I first wake up it’s REAL bad, I used to be able to move around & the symptoms would subside some. Now I just can’t get it to subside no matter what I do. I can’t use my hands normally after waking up and for a large part of the morning. Have to stop whatever I’m doing because I’m unable to hold, grab to do much due to the pain & numbness

[@luigicotignano]

Hi Sam, thanks a lot for your videos. Always interesting and with plenty to learn.

[@JSureshSamuel]

Medical student from India here,thank you sir

[@gracie99999]

thanks for your teachings and the way you teach

[@Duskysky1]

I have my 1st osce tomorrow and I am so sleepy the only thing coming in my mind is to watch some anatomy videos

[@KennyGuyte]

Excellent, informative, well delivered presentation. God bless brother 🙏🏾💪🏾✊🏾

[@dailydoseofmedicinee]

Great way to teach 👍

[@hankroest6836]

15:05 "Can you have 'very vital?'" Good question! Not in the "necessary for life" sense. But maybe in the "full of vitality" sense...

[@timilehinafolabi1446]

Lovely, thank you

[@rubabajmal616]

I love your videos

[@Simonxq]

Vert helpful thanks

[@khadijakhan8042]

My textbook does not include teres minor as a part of the posterior boundary of the axilla. Is that wrong? Because I can see it is right below the subscapularis, isn't it? It has an insertion on the humerus too.

[@oliversparks1459]

Excellent

[@mrayed97]

So grateful

[@Abuukar0976]

Thank you very much sir i need those plastic anotomy where i get.

[@SamWebster]

We buy our models from Adam,Rouilly.

[@blessingekott357]

Thank you sir

[@WalksAlone]

Lovely, thank you 😊

[@sea_gale8583]

This is great.

[@HaroldSeaman]

I've seen one of the stranger things actors has cleidocranial dysostosis and has no collar bones at all, I'm trying to understand how the shoulder can function without it and support its own weight.

[@Abuukar0976]

Thank you sir how much.each one or least i need to buy and where.

[@jabaerga1]

Why are people ticklish around the axilla?

[@peteschreiber9517]

Hi, can you explain Pelvic Congestion Syndrome in men. Thanks.

[@fatimanaveed5269]

Tysm

[@dnyaneshwarmahajan7723]

Sir can we get free access to u r anatomy app through any of the exam u r can provide ???

[@Sunrisesunset999]

That boring skeleton never looks this cute before LOL 😂

[@Mekashwa7942]

It’s so weird that if I haven’t watched this video I would’ve never known the name of the deformity I have that makes me look like a camel from the side is actually called cervical rib or that it’s so rare like 0.5-1% of population have it 😭😭

[@sohailahmed4474]

And thank you very much

[@md.minhajfahim5860]

💙❤️

[@sohailahmed4474]

Sam you're such an insporation