044 How Blood Flows Through the Heart

[ChocolateFaggot]

Great video!

[joanna5237]

Wow should of saw this before I got a D :( ...now gonna retake it for sure imma get an A ...thank you I get everything so much better because of you :D yay!!

[jonez444]

My teacher took 2 and a half weeks to explain that but she failed miserablery, and you did that in 9 minutes. thankyou so much

[7akkoyeb]

Thanks for letting it all make sense thanks so much

[doubleg35]

Thanks to people as yourself, I can better understand this material. Thank you for the time and effort and the good explanations!

[0neinamilli0n]

that was an excellent easy description! THank you so much! :)

[milandou01]

Now,I understand my lecture from yesterday.. Thanks you so much.

[cutiepierubs]

very well-done!

[fleetwoodfan12]

I wish you could get my tuition instead of my physio prof...

[lunita01co1]

I loveeeeeeeeeeeeeeeeeeeeeeeeeee­eeeeee this guy he makes all this topics very simple !!!!!!!!thank you for you help

[lomographylillian]

So incredibly helpful, you are such a blessing!!

[anserhasan]

oh and you might have to correct the decription of the vena cava its superior and inferior not anterior and posterior. But it was a great video for clearing my understanding of blood circulation but im confused what relationship do the papillary muscles have when the atria is contracting or not and how it affects the valves.

[anserhasan]

id like to know how when the papillary muscles contract which also makes the chordae tendinae pull back and taking notice that the tricuspid valve is connected to the chordae tendinae do the valves open or do they close when the papillary muscles contract along with the chordae tendinae and during when the atria contracts. 

[zamus2004]

This is so awsome i actually understood everything thank you!! Great video 2 thumbs up! :)

[okay859]

i wish you were my teacher! :)

[ohcecilia228]

Great video, you did a great job!

[lozlo13]

Thank you for explaining this in a fun and easy way :) cheers mate

[Pherawax]

Good video. Easier to follow than most

[ABL36]

Is this guy from reading rainbow?

[TheHeartmedia]

tx for the upload, keep up the good work, knowledge for all!

[tokohgraduan2009]

hello leslie could you make explaination on smooth muscle's contraction mechanism please?

i dont understand about the calmadulin-calcium complex,myosin light chain kinase,myosin light chain phosphatase and the latch bridge.thanks a lot anyway.

[adamski03able]

O my, very interesting. Thx Leslie you made it very easy to understand. Keep up the good job. Thumbs up

[InteractiveBiology]

@adamski03able Glad to know you found value in them. Please stay tuned! We have more Biology videos coming soon! :)

[Dipsy260495]

if you can , please may you make a video on plants as in plant transport system , (xylem and phloem)...

[InteractiveBiology]

@Dipsy260495 Hi, unfortunately, Leslie is no longer taking requests for specific videos. He's loaded with a lot of work that it would already be impossible for him to do all requests. But, nevertheless, we hope you'll still find the site helpful. Good luck with your studies!

[experience271]

@Dipsy260495 xylem transports water. Phloem transports sugars and other ions. Each structure has specific adaptive features that allows it to carry out its function. Water is transported using hydro-static pressure gradient across plant. Sucrose enters the plant using active transport. Google for more info...

[sheilayoyo]

LOVE THIS CHANNEL ;) SO HELPFULL

[InteractiveBiology]

@sheilayoyo Thank you! We're glad to be of help. Please stay tuned as Leslie will be making more Biology videos for the site. Thank you! :)

[CamelliaASultan]

thanks alooooot u r amazing

[InteractiveBiology]

@CamelliaASultan You're welcome! Please stay tuned. We have more Biology videos coming soon! :) Have fun learning Biology!

[norcoboy]

Thank you for posting Leslie. You are truly an inspiration.

[InteractiveBiology]

@norcoboy Leslie's inspiration are actually his viewers. You are his reason why he wants to keep on doing what he's doing at his Biology website. Stay tuned. He has more videos coming very soon!

[raiamirr]

it really helps. Great Video..!

[InteractiveBiology]

@raiamirr Thank you! :)

[lemonmasherboi]

great vid thanks alot really heped me with my biology exam thumbs up :)

[InteractiveBiology]

@lemonmasherboi That's great! Stay tuned, we have more Biology videos coming very soon!

[sylverteaz]

@issayk - they can be reffered to as anterior/superior/cranial and posterior/inferior/caudal, interchangeably. They are all correct...

[sylverteaz]

I have an anatomy test on Monday and this helped me - it was easy to follow and a clear demonstration! Thanks for posting.

[InteractiveBiology]

@sylverteaz You're welcome! Glad to know this helped. Stay tuned for more Biology videos :)

[FLUFFYburito]

i have i science test on this tomorrow, this helped a lot

[InteractiveBiology]

@FLUFFYburito Great! Hope you ace your test. Good luck! :)

[XSymphony]

Hello, one quick observation... 4::54.... Posterior and Anterior vena cava.

I think it's Superior (Anterior) and Inferior (Posterior). I'm from Romania... and we studied them like that.... and I've seen pretty much videos (USA made) which say the same thing :) (superior - inferior)

Anterior = in front of. Posterior = behind.

They have the same position, only one collects no oxigen blood from superior members + head, and the other one from the down below body.

Keep up the good work

[InteractiveBiology]

@XSymphony Yes, this error was already discussed. Please refer to the previous comments below. Thank you! :)

[XSymphony]

@InteractiveBiology sorry, my bad, didn't checked all comments.

[InteractiveBiology]

@XSymphony Not a problem :)

[issayk1]

In The name of God Hello Thanks for your video very useful for more education but i have wrong in this video in picture worte anterior and posterior vena cava but it's wrong there are superior and inferior vena cava Thanks for your video Islam is my way until beyond God's my trust God keep's me

[InteractiveBiology]

@issayk1 Hi! Thank you for watching. Yes, we had the discussion on the error below in the earlier comments posted. You can go ahead and check them out.

Please stay tuned for more Biology videos :)

[ChibiNyaaX3]

This video saved me! I have. Test on this tomorrow and I didn't understand the way the book made it out. After watching this I get it a lot better!! Thank you soooo much!

[InteractiveBiology]

@ChibiNyaaX3 Glad you're finding value in our videos. Thank you for watching! Please stay tuned for more Biology videos coming soon!

[shanaspeck]

I am so glad I found this video. We are studying Cardiovascular system in A & P now and I just could not grasp the flow, but now I totally understand.

[InteractiveBiology]

@shanaspeck Leslie explains them as simply as he can for everyone to understand. You can visit our website for more cardiovascular system videos. I'm sure you'll find value in each of them. Thank you for watching and stay tuned for more! :)

[shawnagh]

These videos are awesome and so very helpful! This just may help me pass my nursing exam. I've never really grasped the whole concept of the heart, but these definitely made it crystal clear! Thank you so very much!

[InteractiveBiology]

@shawnagh You're very much welcome. We're happy to know that we were able to clarify things for you. Stay tuned, because we have more videos coming!

[dhaccessories]

Thank you soooooooo much. This really helped me.

[InteractiveBiology]

@dhaccessories Glad to know it did. Do come back to our Biology site. We have more videos available that may be interesting for you. Have fun!

[SydellexX]

thankyoooooooooooooooooooooooo­ou :)

[InteractiveBiology]

@SydellexX You're welcome. Stay tuned 'cause there's more coming! :)

[Elsabicton]

so simple to understand thank you

[InteractiveBiology]

@Elsabicton Thank you! Stay tuned for more.

[kerrie337]

this is so helpful!

[InteractiveBiology]

@kerrie337 Glad to know you liked the video. The site has more of them and we are going to upload more Biology videos soon. Hope to see you there!

[InteractiveBiology]

Thank you! Stay tuned for more.

[kjganih]

I love how simple this is. :) I'm prepping for my NBDE part 1. Thank you so much!

[InteractiveBiology]

@kjganih Good stuff. Glad it's simple enough to understand. That was the goal.

[SHANYFREE33]

EPISODE 44 WAS AWESOME, IT MADE SENSE TO ME!!! IN NURSING SCHOOL, KEEP THE VIDEOS COMING.

[InteractiveBiology]

@SHANYFREE33 Glad to hear it's helping. Stay tuned for many more :)

[5000spurs]

nice job!

[Medulaman683]

aren't the two vena cava veins called "superior" and "inferior"? I thought they were called this because one comes from the top part of the body the other comes from the lower half, as opposed to one being in the front and one in the back (anterior vs posterior).

[InteractiveBiology]

@Medulaman683 Yeah, we had that discussion below in the comments. Check it out :)

[Medulaman683]

@InteractiveBiology got it, just making sure. thanks! and great videos, they're really helpful for my (biological sciences) MCAT prep!

[breakingrain]

Wow. I'm studying for my AP biology exam and this is a big help. It really cleared things up. Thanks :D

[InteractiveBiology]

@breakingrain Glad to know. Good luck on your exam. Let me know how it goes ;)

[breakingrain]

@InteractiveBiology Your videos did help a lot, even though I was cramming for my exam. Surprisingly the exam was easier than the tests in my AP class. Wish I found your videos earlier! XD

[InteractiveBiology]

@breakingrain Glad it went well. Congrats :D

[Livinglifehigh]

thanks again. never knew the vena cavas were called posterior and anterior. i learned it as superior and inferior vena cavas. haha but to each his own

[InteractiveBiology]

@Livinglifehigh Actually, now that you mentioned it, I actually learned superior and inferior too when I took bio. I guess they can be called by either. Cool stuff!