The Circulatory System Part 1: The Heart

The heart! What a symbol of love and affection. But does emotional processing really take place in the heart? Sorry romantics, but no. That's the brain's business. But the heart is still miraculous. It is a completely natural pump whose responsibility it is to circulate blood all over the body to give all the cells the oxygen they need to perform cellular respiration, as well as transporting nutrients and hormones. Let's see how the heart works now!
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[@MedlifeCrisis]

Why did I watch this entire video? I already know all this stuff. This is the magic of Dave, just very easy to watch :) Great job! Sincerely, a heart doctor.

[@chickenalfredo4543]

Always good to freshen up on known knowledge maybe ? Haha

[@chickenalfredo4543]

I don’t know most of this stuff tbh I’m very behind as a college student

[@tawannawilson8160]

Heart doctor cool

[@sherenasmith1351]

Okay

[@sherenasmith1351]

😀😀😀

[@michaelpisciarino5348]

0:20 The Cardiovascular System 0:38 The Romanticized Heart 0:58 It is Simply a remarkable pump 1:08 The Blood Pumping Process 1:52 The Atrium and The Ventricle 3:14 4 Chambers 2:11 The Pericardium 4:49 Heart Valves 5:46 Muscle Fibers (Cardiac and Skeletal) 7:49 Cardiac Conduction. Pacemaker cells

[@poopy2xd772]

Michael Pisciarino thx

[@rovelynsolis6149]

Thanx

[@jazzy-xv1ev]

You are amazing! THANK YOU FOR MAKING THESE TYPES OF VIDEOS I WILL INDEED USE IT FOR MY CLASS TOMORROW FOR COSMETOLOGY

[@jacktoneomollo9280]

Brilliant job Pro.Dave,thanks for making work easier in terms of discovering the heart.

[@sladerzontade2675]

Who else is here bc of class

[@celsojoven3525]

Covid 19 GMA news 70

[@smileyfxcez5933]

me

[@4mingmar]

I am also how can I help you

[@mrawsomenoddle5890]

Onviuosly

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Me I'm way back so I have to

[@ahhhhhhh2656]

Watching this for valentines day.

[@illyadope3787]

My boy, the lonely table at the bar is expecting you

[@born2bregisterednurse346]

I wish you was the professor for all my classes. You explain everything to the T. I thank you for your videos. I wouldn't have passed Anatomy .

[@pinto160]

I am very appreciative of you. Thank you so much for your videos. Its so easy to understand when you explain it.

[@Parallelcoaching]

Great video - clear and easy to follow thank you :)

[@valestuffs]

Was waiting for this one,thnx proffesor Dave,always trying to help us ❤️

[@marysemizzanin7132]

You really helped a lot of people, including me :) thanks prof dave! You make it a lot easier for all of us :)

[@KitsVlog801]

Prof Dave thanks , this could help for my demo teaching.

[@TS-wf2rn]

So helpful! Thank you!

[@mavs4411]

I was brought here because of online class.

[@yadanarhtay3200]

Tmr my exam on dugga n is already a nightmare ;-;

[@muslimscholar7782]

me too my sis

[@sufi9718]

same

[@jimmyshrimbe9361]

You rock, Professor Dave!!

[@sebastiancazares6360]

Amazing video! Thanks for sharing with us your knowledge. Blessings.

[@_momo_o.]

such a nice explanation,i have a test tomorrow on this. love the intro btw :D

[@layanbala146]

Samee😐

[@maxwelldorkpoh5285]

i have really enjoyed this lesson, great.

[@bhishmadevdewangan2175]

Seriously , if i have studied this in class so it would taken 7 -14 days But, your video made it understand in less than 30 min Thanks for this amaxzing content

[@Mo-zl2vb]

thank you! this really really helped me.

[@jaininnaik4171]

Great video!

[@joyebanik9918]

Thank u so much Sir for making this Videos😍

[@lamonterogers2437]

Thanks for sharing

[@meklitalemayehu2755]

I didn't understand when I studing without this video thanks dave I appreciate you keep it up👏👏👏

[@ogeezeibe7935]

Class made easy,good teacher

[@hitchrestsfm4493]

Anybody here because they have a test on this in an hour

[@andreaaldana1922]

How did it go

[@duhaabedalkrem2010]

So beautiful and it made it so easy to me thank you🤍

[@is6815]

You really got some real trimmin on!

[@cek7940]

Thank you so very much for Posting these videos...I passed my mblex test!!

[@user-gy5xi7mh9r]

Thank You for sharing. Dr. Professor Dave explains ❤❤❤❤❤❤❤❤❤❤❤

[@victoriapiasecka7766]

Always perfect!

[@massaquoivandi9278]

My great lecturer Keep it up my tutor

[@chloejeovana]

This video helped me SO MUCH for studying my teas.

[@daphneangeliesevilleja6251]

thanks ths made me more understand the parts!!! btw im here bc of class-

[@thedude1316]

I had a heart transplant in March 2017. I am here to learn more. thank you.

[@Adnan_Khan__111]

Are you okay now ?

[@thedude1316]

@@Adnan_Khan__111 Yes. I do any activity I want to. Ice Hockey, hiking, family stuff. They saved my life.

[@youngjuyoon1325]

6:46 If I understand correctly, the T-tubules enter once in the cardiac muscle sarcomere at the Z-line, and twice in the skeletal sarcomere in the junctions between the A band-I band.

[@cmfreddie39]

very interesting video

[@asminsainazbuksh4977]

Thanks for answer

[@tocolee6127]

AWESOME!

[@asiyafarheen9828]

Thank you sir

[@venkataraogude5612]

Excellent, tq Dr

[@mohamudmohamed5828]

thanks perfo dave

[@rigrentals5297]

Great information Professor.

[@ibrahimjumu2968]

Thanks proff Dave

[@edensrockroll972]

Thank you 👍

[@eyceltiongson8053]

This help me to get my science class👍👍

[@georgieexo]

Really Good at explaining! Thanks😌

[@rhylcollins9724]

You look seccy

[@rhylcollins9724]

What is your address email and your name

[@rhylcollins9724]

I love 💕 you 🤟 😘

[@rhylcollins9724]

My name is Malachi Collins

[@Verschlimmbesserung]

Just to think that all this complexity came about from the particles in the ground...

[@yoshiisamongus4698]

Ik right people really be thinking therea no God

[@navinragoobir9667]

God hmm

[@vanoliale]

this is what makes it so fascinating to learn science and biology

[@monataha3207]

0:41 science now discovered that the heart has its own memory too❤egyptians knew that in their ancient medical manuscripts, it seems now that heart doesn't forget💔😅

[@ruweydoaxmed7403]

Thanks

[@KangPhanha]

Thanks bro

[@surakshanaravikumar3356]

Thank u 🙏

[@nethansmomma9795]

Thank you

[@iex9695]

Thank you very much

[@rhylcollins9724]

You Welcome

[@userrr703]

tysm!

[@pavanchalla4913]

Thanx

[@Inderyasmattu]

Nice

[@simoymitchell6064]

👏👏👏👏👐👐👐🤘🤘👊👊🖖🖖🤞🤞👍✍️🤟🤟🖐️🤙🤙☝️🖐️🖕👇👌👅🧠🧠🤝🧠🧠🧠🧠🤝🤝🤝🧠🧠🧠🤝🤝🤝🧠🤝🤝🤝💅 so educational

[@ambgamerboy7642]

Good video 🎅

[@imaginaryuniverse632]

That's odd, I just started thinking of the Heart as the center of thought and emotion. Isn't it actually the wave that travels from the cavatation of the heart that contains almost all of the information and energy that is used to inform and power all of our cells. Isn't it the vibration of the wave from the heart that resonates with the structures in the electron transfer chain that creates the attraction that separates the electrons from the protons. Is there not a flow of both electricity and magnetism that is measured as being substantially greater than that of the brain and can't it be seen that the power of the brain is entirely derived from the Heart. I enjoy your videos very much.

[@Obamnaz]

This guy knows a lot about the science stuff..

[@ahmedlafth6680]

يروحلك فدوة دكتور وفيق🥲

[@sarojkumarmodak9769]

i like this video.

[@linkinminor10]

I love my heart!! Do you love ur heart dave??

[@blessedsuccessful]

😂😂😂😂

[@paatoklamisi3454]

Thank you sir

[@sonamwangmo7989]

Can you please make a video about human circulatory system of blood for class nine

[@TshiamoRakgoale]

writing an exam about this 2morrow and I'm only revising now😭😭😩

[@qween.8466]

I have a test in biomedical science tomorrow trying not to fail I'll type my score once it's over.

[@legesseseyoum4010]

I like it

[@carol-annemansoor1351]

Thanks for the good explaining ....pls can u explain the human skeleton 🙏🏻

[@ProfessorDaveExplains]

Check the A&P playlist.

[@ratandutta2433]

You are super

[@clover..H]

I like the intro

[@sarojkumarmodak9769]

i too like to read in biology of heart please tell me more about all about heart.

[@user-rk2fm3bn3u]

Good very good ❤❤❤

[@SaadSaad-mb4py]

Good very good

[@masauso8523]

Why do I feel my heart is at left of my medial line

[@oumerabdulfetah6068]

I think heart plays avital role in thinking and decision making

[@frankchileshe9006]

What is the other name for peace maker?

[@wyattbrowning9989]

I always like learning thank you for the video.

[@jscanlan1442]

what's the 3 or 4 main structures of the circulatory system,plz tell me,i need to know for an assignment due tomorrow 😅

[@dannichols6261]

Heart, arteries, capillaries, and veins.

[@whysosad45]

Im writing a test in 30 minutes...hope this helps🤞🏽

[@amoyahwilliamson6706]

Here in 2022 as a year 1 nursing student who is in an online lab class and very lost

[@janasworld7773]

who is here to remember these good days we used to take this lesson in

[@entertainmenttechniques8601]

i like the intro its so funny

[@sherenasmith1351]

Okay

[@addfilldd159]

7:40

[@angelogutierrezBaller]

Why do ppl who have heart transplants sometimes have the cravings of those ppl they received the heart from?

[@kakashitheeditor2731]

Idk?

[@rhylcollins9724]

I don't know this video girl

[@bombadeer8231]

💕

[@caribaez5711]

👍

[@Nothing-ug8fp]

Physiology of cardiovascular system

[@nd679]

but I think that despite progress the heart is still not just a pump ....

[@caitwilliams5457]

W Dave

[@affzor]

0:56 ”the heart serves simply as a pump” false, the heart is also an endocrine organ.

[@satinderjit4]

Joakim Alm Not a major endocrine organ though

[@affzor]

@@satinderjit4 Did I say major? Nevertheless, it produces the natriuretic peptide family.

[@satinderjit4]

@@affzorThe heart is simply a pump. You can do without the hormones that it produces because other MAJOR endocrine organs can perform similar functions. Did I say MAJOR?

[@satinderjit4]

No disrespect bro

[@affzor]

​@@satinderjit4 My statement was that the heart does other things besides pump blood around, not ranking the importance of those functions. I still think you're wrong though. Read this article: academic.oup.com/cardiovascres/article/69/2/318/283233 Please provide me with your sources on " You can do without the hormones that it produces".

[@TITANIC807]

Blood are cirulatory system you are forgot

[@MuhammadMuhammad-ws4ro]

Thanks English man

[@Me.love.]

🤔

[@yuvarajan1513]

Super 👌

[@maryfrancestheresec.estrel1360]

for me LMS for science tomorrow

[@theresathompson9446]

Me

[@mersenebo1051]

Tnx a lot professor but I am Ethiopian your English is difficult to me to anderstand because of its not my first language so if you can plz teach slowly otherwise great teaching

[@dannichols6261]

Set the video to play slower. When a video presenter speaks too quickly to understand, go to the 'gear wheel' (for 'settings') at the bottom of the video, and select 75% playback speed.

[@JannaMission]

❤❤❤❤❤❤❤

[@jasonsaville2262]

Keep your heart and blood vessels healthy. Go to the gym as much as possible.