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.
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.
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.
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!
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.
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).
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.
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.
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. 🙏🏼
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). ❤
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 😊
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.
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 )
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.
How anyone could view the structure and functionality of the human body and not instantly realize that it could not have happened by accident is beyond me. God obviously designed and created all the structures. The heart etc did not come into being by a series of accidents and coincidence. People look for a miracle to prove God's existence, that miracle is staring back at you in the mirror.
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.
I am from Bangladeshi....This channel is very Helpfully,,,,, Anatomy, it is very important subject of medical line....... THANK YOU SIR,,,,,LOVE YOU SIR
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!
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
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 🌟
How does the opening between the two atria close when the baby is born? Is there some way it slams shut when the baby takes its first breath? Or does it grow in slowly, and you have what amounts to a two-chamber heart for the first few months of your life?
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.
t-RI-cuspid for RI-ght side of heart (A/V). that's how I remember which is which
Mine is saying Mitral as
Mi-TWO-ra-L
So Two is Bicuspid and last letter L stands for Left side
you ride a tri cycle before a bi cycle
@@kellyslone989 love this one
@@godspeed5428 so good.
Someone in my class said Always TRI to do the RIGHT thing, so tricuspid and right
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.
My favourite is "bi in Urdu means left".
my favorite is tRI,..RIght, "RI" you see the point RIght? ;)
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.
"tri" to be "right"
Mine is saying Mitral as
Mi-TWO-ra-L
So Two is Bicuspid and last letter L stands for Left side
TFW you find doctor house giving anatomy lessons on youtube
Dude that’s what I was thinking the whole entire time 🤦🏻♀️
I wish you could be my university teacher! Wish the profs taught like you!
Thank you so much for your amazing videos! 🤓😃
I respect my prof but he moans every 2 seconds which makes is hard to focus 🤭
Somebody please play him to do physiology 😫
Agreed!!!!
I would pay him!!
Dr. Najeeb is good at it.
11:46 me explaining something I have no idea about in final exam.
😂😂
Sam really enjoys anatomy😅, look at his expression at 11:50😭🤣, you doing a great job Sam i really appreciate your work🙌💯🙏
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!
At 1:50 that Is inferior or diaphragmatic surface of the heart not the 'BASE'.
you re sweet and smart and fun and i love your accent, you do great job
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.
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).
@@SamWebster it got me
Diaphragmatic surface of heart lies on the central tendon of diaphragm
22 : 48 That moment when he talks about MURMURS 🔊 and starts listening Murmurs in the background 🤣🤦 His expression be like WTH 🤷
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.
All of these anatomy videos are so helpful. Thank you.
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.
For the first time ever I have finally understood the anatomy of the heart. You are amazing.
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.
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. 🙏🏼
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). ❤
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 😊
You are incredibly helpful and very engaging to watch. Thank you!
Wow
This is fantastique explaination
I want a Translation to Arabic language , please🥺
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.
Sorry I was focusing on something else, could you start again?
SA node - AV node - Bundle of his- right - left- purkinje fibres
11:47 😂😂😂 I loved this! extremely helpful and informative, thank you!
😂😂😂
i was looking for this comment to keep replaying it! XD it's the best and funny
Was also looking for this comment hahahaha
Actully wanna thank ya from my deep of my heart but please try to talk slower (egyption so my english not perfect as ya)
Tq sir... It helps me a lot.......from India... I only watch your video and give Viva...
same bro, same
You are a wonderful teacher... you dissect the heart to a simple understanding ... thanks
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 )
You are amazing teacher
You made my life easy
You made anatomy easy
Plz make physio videos for us tooo
Thankyou so much
An aluminum casting of the heart lumen would be very useful.
It´s really helpful ! Thank you very much bro
Besides the excellent explanation , what makes your video so good is your humor...LOVE IT! keep it coming Chief
Wonderful..... I am having trouble studying anatomy... And your videos made my life so much easier 🤓🤓😎😎
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.
Thanks for making me understand more deeply about heart😊
From India🇮🇳
I am a first year medical student from Turkey and when I grow up
I WANNA BE JUST LIKE YOU
Mine is saying Mitral as
Mi-TWO-ra-L
So Two is Bicuspid and last letter L stands for Left side
Very Nicely Explained Sir.. Easy to remember the anatomy of heart thanx to your video lecture..
Would love to hear more about interatrial communication diseases. Great video, as always!
Another tip to remember the valve names RAT and LAMB = Right Atrioventricular valve/Tricuspid ....... Left Atrioventricular valve/Mitral/Bicuspid
Love that video. Was so helpful. Thank you soooooo much:) BTW you really look like a Dr. House or he looks like you haha sorry
This is a great and very clear video, I like very much how you explain it. Thank you!
Here after my first anatomy lecture with yourself today... Consolidation, as they say
I'm sure I'll be able to pass n not have a panic attack bc of you ...thank you lots
Understanding everything from you Dr thanks for clear explanation God bless you🙏🙏🙏
Amazing 🎉Thankyou isntGOD GREAT NO WAY THIS COULD HAVE BEEN FORMED BY CHANCE .. THERES SO MUCH PURPOUSE prais Jesus
How anyone could view the structure and functionality of the human body and not instantly realize that it could not have happened by accident is beyond me. God obviously designed and created all the structures. The heart etc did not come into being by a series of accidents and coincidence. People look for a miracle to prove God's existence, that miracle is staring back at you in the mirror.
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
I study BSc Cardiac Physiology and these videos have been a god send - thank you!
I need/want/cannot do without’ teachers who TALK with me. He just talks not lectures, what else can i ask from a teacher
awesome! got a heart quiz in bio145 anatomy and physiology this week, appreciate these videos
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.
Sir please add sub titles it is really helpful iam from India
Please reproduce this particular video.
Or bring the camera closer to this features you are naming.
Love your visual aids. Wish I could get some without breaking the bank
Pls go into the details.. pls go crazy.🙏.. its always fun learning from u.
I would love to contradict, the base of the heart is not the diaphragmatic surface, its the the left atrium please check out
I want to buy models that you used on the video.. can you tell me where to buy those models? Or at least can you tell me the brands?
Thanks for informative things u mention but u don’t speak about the valves positions
Sir u are the best teacher...i literally mean this to u all hail down to mr. Sam webster⚘⚘⚘
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.
Triangle has three sides so tri_cuspid should have three cusps too.
You’ve made my life so much easier Sam ... Thank you so much 😊 😊
This video is really helpful. Thanks to Sam.
He should be on children's channels is good
You made things so easy for me to understand at a time. Thanks for this video.
So very helpful. Thank you sir
I am from Bangladeshi....This channel is very Helpfully,,,,, Anatomy, it is very important subject of medical line.......
THANK YOU SIR,,,,,LOVE YOU SIR
Wow sir awesome
are you a fucking doctor.I love your videos and the great details
The Best Human Heart Anatomy video.....
Thank you so much, this video really help me a lot .
💞Good! Thank you very much! 超讚！ 感謝分享。～祝福您！平安快樂,吉祥如意、身體安康、心想事成。～^_^🌷💞
your videos are awesome sir!
Sir tell me you were not the hero of The walking dead series 😩
Amazing and easy to remember! Thank you
I was wondering why I love this man as a my boyfriend
Incredible
I have watched this video for several times.Very useful
That is very helpful.Many thanks...🌷
This video is exactly what I've been looking for- THANK YOU!!!!
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!
POV: You discovered this guy just before your exams and now you cant live without his lectures......
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
@Sam webster Nice explaination Sir.it help me much .can i ask something.where could we afford and buy those cardiac mannequin? thx lot
Good video about the anatomy of the human heart 🫀.
Good video about the anatomy of the human heart 🫀.
Sir I am Pakistani your lecture so helpful please translate Urdu
I am student of grade 8
Thanks .my name is Waleed Khan
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 🌟
Very good and useful.TNX🎉🎉
"Evolution" could have been mechanism by which it was produced, but something planned and created the human heart.
Mr. Sam looks like the actor Dr. Gregory from the medical show Dr. House.. :))
Thank you Samm.
How does the opening between the two atria close when the baby is born? Is there some way it slams shut when the baby takes its first breath? Or does it grow in slowly, and you have what amounts to a two-chamber heart for the first few months of your life?
you should be my instructure ,for you are awesome!. God blessed you!
Systemic circulation drains in right atrium??
Intresting stuff... Ur mannerism is also fascinating