Heart (anatomy)

[@kilisteiner7509]

I am studying medicine and i must say, Anatomy is so much easier and understandable with Mr. Webster! Thank you for taking time and uploading the videos! In 15 years I will tell my assistants I’ve learned the most by Mr. Webster! Thank you Sir.

[@TheRSLake]

My favored mnemonic for the av valves is "tri before you bi" (as in the phrase "try before you buy"). Blood goes through the tricuspid valve before it goes through the bicuspid/mitral valve.

[@ahmedejaz1125]

My favourite is "bi in Urdu means left".

[@Drmuazahmed]

my favorite is tRI,..RIght, "RI" you see the point RIght? ;)

[@maielego1354]

best one I had was from my cardio lecturer in Swansea Uni, not 100% PC: Mitral is always on the left because bishops (a 'mitre' is the headdress worn by bishops) are never right.

[@sjsjsjsj1694]

"tri" to be "right"

[@godspeed5428]

Mine is saying Mitral as Mi-TWO-ra-L So Two is Bicuspid and last letter L stands for Left side

[@PropheticFate]

t-RI-cuspid for RI-ght side of heart (A/V). that's how I remember which is which

[@godspeed5428]

Mine is saying Mitral as Mi-TWO-ra-L So Two is Bicuspid and last letter L stands for Left side

[@kellyslone989]

you ride a tri cycle before a bi cycle

[@hollymoses4865]

@@kellyslone989 love this one

[@hollymoses4865]

@@godspeed5428 so good.

[@rainar6996]

Someone in my class said Always TRI to do the RIGHT thing, so tricuspid and right

[@AnxiousMedic]

Sam you deserve an Award/accolade just named after you. You are extremely talented in a way that you make even the simplest of all things in Anatomy even simpler! You are a gift to mankind. Thank you!

[@dianedawes6866]

I’m 80 years old. Heart failure due to a virus in 1970. I currently have an ICD. My EF is in and around 15. I have never understood (to my satisfaction) what is really happening with my heart. And then I found you. Thank you so much for teaching me what I’ve failed to learn over so many years. You are blessed to have your teaching skills and I’m blessed to have you. Thank you from the bottom of my heart (no pun intended). ❤

[@ela9917]

I wish you could be my university teacher! Wish the profs taught like you! Thank you so much for your amazing videos! 🤓😃

[@DodoDodo-qd7po]

I respect my prof but he moans every 2 seconds which makes is hard to focus 🤭

[@orlaith3444]

For the first time ever I have finally understood the anatomy of the heart. You are amazing.

[@urmitripathi7528]

I am from india. Presently Preparing for NBDE exams. Sir, You are Gr8. Its been like I have never learned Anatomy of Heart earlier in my Bachelors like you are teaching. You are fantastic mentor. Thank you so much. Respect.

[@OmarOmar-sk5vu]

I'm not in the medical field, but was interested to have general knowledge about how the heart works, and now I'm interested in the whole human body anatomy! Brilliant smooth way to share your knowledge Dr. Drake Ramoray

[@skylerrawson6952]

Fantastic anatomy videos! You did say that the base of the heart rests on the diaphragm which is incorrect according to my professor, anatomy text books, and the internet. The base of the heart is actually superior and medially located. The base is mostly composed of the left atrium (and some of the right atrium). I have found this concept a bit confusing but also an important one. THE HEART DOES NOT SIT ON IT'S BASE. Again thank you for the great videos i just wanted to clarify for others who may be confused.

[@SamWebster]

Did I? Oops. Yes, the base of the heart is the opposite end to the apex. I guess I was thinking of the word "base" in the general way. Thanks for the clarification! You're doing what I always recommend - not relying on a single source of information (i.e. me).

[@maryumali1764]

@@SamWebster it got me

[@MSD1-]

Diaphragmatic surface of heart lies on the central tendon of diaphragm

[@FatimaBasheer-q9z]

Hey Mr sam i have a friend that watches ur videos and reexplain them to me perfectly so thank u so much for helping us

[@abbyclark1420]

Thank you so much for making this! One of the BEST videos for heart anatomy I've found. Really great supplement for my human gross anatomy course.

[@lolaleontyne5551]

I study BSc Cardiac Physiology and these videos have been a god send - thank you!

[@yangaventesabelo1836]

Sam really enjoys anatomy😅, look at his expression at 11:50😭🤣, you doing a great job Sam i really appreciate your work🙌💯🙏

[@Dankkrg]

1:10 please do!!! I’d really love much more detail. This (relatively) short video explained flawlessly wot 10-hour lectures don’t. Thank you for your passion and really hope you do another video where you go into deeper details of the heart 😊

[@sweet-hiro1339]

Thank you very much for your great work. You inspire me everyday to study for anatomy because you make this complex subject so easy to learn only because of your type of explanation. 🙏🏼

[@haileyboyko926]

You are incredibly helpful and very engaging to watch. Thank you!

[@niharikabanoth1637]

Thanks for making me understand more deeply about heart😊 From India🇮🇳

[@nazmulhayder871]

I am from Bangladeshi....This channel is very Helpfully,,,,, Anatomy, it is very important subject of medical line....... THANK YOU SIR,,,,,LOVE YOU SIR

[@ashleyrayneboe5492]

All of these anatomy videos are so helpful. Thank you.

[@thelmajoryman5103]

You are a wonderful teacher... you dissect the heart to a simple understanding ... thanks

[@sundaylamoka6557]

Understanding everything from you Dr thanks for clear explanation God bless you🙏🙏🙏

[@markwnongsiej6570]

Besides the excellent explanation , what makes your video so good is your humor...LOVE IT! keep it coming Chief

[@StrongHeart_Me]

The Best Human Heart Anatomy video.....

[@saher997]

You are amazing teacher You made my life easy You made anatomy easy Plz make physio videos for us tooo Thankyou so much

[@abirbaara4031]

you re sweet and smart and fun and i love your accent, you do great job

[@dimahaddad7664]

Wonderful..... I am having trouble studying anatomy... And your videos made my life so much easier 🤓🤓😎😎

[@wakylaugh]

Somebody please play him to do physiology 😫

[@jesusboyyyy]

Agreed!!!!

[@unsinnkim3690]

I would pay him!!

[@vybhvv]

Dr. Najeeb is good at it.

[@Ali_myheart123]

The best video about the human heart...

[@amanhfz]

This has been the best segmented time stamped video requesting future videos to be like this...🙌🙌🙏🙏

[@ayeshajalal9658]

can you make a video correlating anatomical position of organs to vertebrae? (it will make it easy to understand injuries at each level of vertebrae) thank you. your videos are a great help.

[@TheShockyOfficial]

11:46 me explaining something I have no idea about in final exam.

[@aishwaryasiva4514]

😂😂

[@CMA-he7pe]

At this point I watch this video on an annual basis ( because I always have to revise cardiology) but I'm not complaining, I learn more each time and remember even more later on 🌟

[@ayatali7919]

Just today I had a class on anatomy of heart and I swear I didn't get a thing . Thankyou so much . Your lecture was really helpful

[@alimohebbifard7650]

I have watched this video for several times.Very useful

[@jennahickey9495]

This video is exactly what I've been looking for- THANK YOU!!!!

[@leandrop1280]

Would love to hear more about interatrial communication diseases. Great video, as always!

[@Thegoodchanelsonly]

Every things makes sense and be clear with you , the naming behind mitral valve got me gasped ! 😂 , I have been trying to memorize the heart and keep forgetting it ! But YOU MAKE ANATOMY SO EASY AND CLEAAAAAR ( watching you from Africa , you have students all over the world )

[@ashitabhasin8434]

Sir u are the best teacher...i literally mean this to u all hail down to mr. Sam webster⚘⚘⚘

[@blessingogbuehi1867]

You made things so easy for me to understand at a time. Thanks for this video.

[@rishidixit3983]

Thanks! Writing a paper on tetralogy of fallot with no prior knowledge on heart anatomy. This helped tremendously!

[@monilolaadeshina6726]

You’ve made my life so much easier Sam ... Thank you so much 😊 😊

[@tripti1339]

Pls go into the details.. pls go crazy.🙏.. its always fun learning from u.

[@agrawalawage616]

Watched this just before the anatomy dissection clz. Thanks Sam!!

[@dreammbbsnotes9149]

Tq sir... It helps me a lot.......from India... I only watch your video and give Viva...

[@sarahz.1293]

same bro, same

[@aadilrasheed2984]

How beautifully explained You are a great anatomy teacher Allah bless you sir

[@katekote1510]

Amazing and easy to remember! Thank you

[@InaBlueNutshell]

This is a great and very clear video, I like very much how you explain it. Thank you!

[@abhishekkumar5071]

I admire you for making explanation easy to understand.

[@holistichealthcare713]

Very Nicely Explained Sir.. Easy to remember the anatomy of heart thanx to your video lecture..

[@akankshaagrawal6305]

Ur models are deadly original🤯🤯....a big thanks to you

[@imbored4615]

TFW you find doctor house giving anatomy lessons on youtube

[@mandagomez8692]

Dude that’s what I was thinking the whole entire time 🤦🏻‍♀️

[@hiralladva1996]

At 1:50 that Is inferior or diaphragmatic surface of the heart not the 'BASE'.

[@MohmedAlawdi]

Thank you so much, this video really help me a lot .

[@mercilarob9718]

you should be my instructure ,for you are awesome!. God blessed you!

[@btchitsda_wizardemoji]

awesome! got a heart quiz in bio145 anatomy and physiology this week, appreciate these videos

[@gauravagarwal8966]

These videos are therapeutic

[@himariyabelayneh1937]

I'm sure I'll be able to pass n not have a panic attack bc of you ...thank you lots

[@amantleduta591]

This video is really helpful. Thanks to Sam.

[@AimeeGirl]

Love your visual aids. Wish I could get some without breaking the bank

[@Anatomy_Prof]

Another tip to remember the valve names RAT and LAMB = Right Atrioventricular valve/Tricuspid ....... Left Atrioventricular valve/Mitral/Bicuspid

[@Mikyhendrix1]

I would say (just not to be mislead by the misconception of the "blue blood") that the deoxygenated blood (low saturation of O2) is actually dark red, instead the red bright color of the blood is actually related to the oxygenated blood of almost all the arteries. Only some arthropods use hemocyanin in their hemolymph which is copper-rich fluid analogous to our blood and it's blue. By the way I think it was just a conceptual explanation, not really a correction, just to clarify. Prof. Webster thanks again from formidable lectures, it's pretty catchy! 💓 (I'm aware this heart emoji is anatomically incorrect!)

[@Ali_myheart]

The best video about the anatomy of heart...

[@deathsoulger1]

An aluminum casting of the heart lumen would be very useful.

[@agie3096]

You are always the best! Thank you so much. I can watch your videos like a movie and learn a lot from it. Please do make more videos and lectures.

[@Joanna1195]

11:47 😂😂😂 I loved this! extremely helpful and informative, thank you!

[@troptard4859]

😂😂😂

[@umamaalshahiri8155]

i was looking for this comment to keep replaying it! XD it's the best and funny

[@andrewbuchan6122]

Was also looking for this comment hahahaha

[@amanborawake07]

SA node - AV node - Bundle of his- right - left- purkinje fibres

[@Ali.Mohebbi_me]

Good video about the anatomy of the human heart 🫀.

[@arshaahouramanesh6901]

as always , I'm thankful and totally owe you my knowledge , merci

[@katalizora6353]

This channel Light side of anatomy

[@Ali_010strongheart]

That is very helpful.Many thanks...🌷

[@howtotutorials626]

22 : 48 That moment when he talks about MURMURS 🔊 and starts listening Murmurs in the background 🤣🤦 His expression be like WTH 🤷

[@muzafarpathan]

11.47 Awesome Expression

[@althepal1196]

I love that Sam left in the mysterious screams at 22:44

[@Njalamedicos3858]

My Anatomy mentor ♥️

[@Ali.strongheartt]

It was very useful.Many thanks...

[@gailwilkinson8848]

Brilliant how he explains things to you...

[@Ali_astrongheart]

Good heart anatomy video.

[@ryanp3559]

this guy is the undisputed greatest

[@dobby3159]

At 1:52 is not the base of the heart The base of the heart does not sit on the diaphragm!! It is the portion of heart that is bounded superiorly by the dividing pulmonary trunk and inferiorly by the post part of the atrioventricular groove.

[@johnfrancis_kennedy]

Great video, thank you Sam :)

[@cherlandecorneille6439]

Incredible

[@ashishranjan5732]

Wonderful explanation sir

[@hudsonjohn]

amazing! Just looking at the way the heart is engineered.... It's got something so complexly calculated to function the way it does! There is no way this could "just happen" due to random evolution over a million years! There Has to be a Designer!

[@enochbrown8178]

Wonderful job, Sam Webster! Thank you!!!

[@laveenaguptalive9062]

Digitalisation has made learning so easier. God!

[@deeplabana5238]

sir your'e way of teaching is great 🙏❤️

[@abdulrahmans.3129]

Fantastic job as always! Got a bit confused though, when you talked about aortic valve incompetence you said a possible outcome would be swelling of the extremities. Shouldn’t it be pulmonary edema? 🤔 or maybe I’m just mixing things up.

[@doktoremo5652]

I am a first year medical student from Turkey and when I grow up I WANNA BE JUST LIKE YOU

[@AliMohebbi_F]

Very good and useful.TNX🎉🎉

[@Dr._Mahmoud_Qasem]

It´s really helpful ! Thank you very much bro

[@stellasunu4772]

This is anatomy for real, I have every bit of it. You are making me love anatomy, good work, keep it up ♥️

[@valentinemoraa1747]

I would love to contradict, the base of the heart is not the diaphragmatic surface, its the the left atrium please check out

[@sukankumaryadav2920]

Very good di scription.

[@caroliwuchukwu2923]

So very helpful. Thank you sir

[@alphatoon2950]

Intresting stuff... Ur mannerism is also fascinating

[@excalibur9768]

If anyone is interested in parasympathetic and sympathetic innervation: Parasympathetic: Acetylcholine (ACh) released from the Vagus nerve, which terminates at the SA node, acts on muscarinic receptors (MAChr) to activate intracellular G-proteins within the SA nodal cells. These proteins inhibit the type T calcium channels whilst phosphorylating potassium channels. In essence, this results in the SA nodal cells becoming hyperpolarised and thus taking longer to reach their pacemaker potential threshold of -40mV. The overall result of this is a reduced heart rate. Sympathetic: Noradrenaline is released by post-ganglionic efferent close to the SA node where it binds to Beta 1 receptors and activates Gs protein complexes on the intracellular surface. These proteins a activate a CAmp second messenger system and protein kinases which ultimately phosphorylate the calcium and sodium channels increasing conductance for their respective ions. In essence, the -40mV threshold to the pacemaker potential is attained quicker and heart rate thus in increases. There's also a complex interaction between the nucleus tractus solaris, nucleus ambiguus, and cardiac vagal neurons that control heart rate but that's perhaps beyond the scope of this comment section. If you want to know though just ask.

[@MyoSu-i2o]

Thanks your hard work

[@Ali.Mohebbi]

Great video.🎉Thanks...

[@Avydevil01245]

Thank you so much Professor for explaining heart anatomy in such a beautiful way. Because of you I am able to pass my control.