By the way, the reason that the MAP is about 1/3 of the difference between systolic and diastolic pressure is because the heart spends about 2/3 of the time in diastole (relaxed) and 1/3 of the time in systole (1/3), causing the mean to be closer to the diastolic pressure.
@@terryernest6264 It has nothing to do with the size of the heart. It is about the time spent in diastole vs systole. Even if they were different sizes, this principle still applies.
I'm having a hard time to understand the Mean Arterial Pressure (MAP), and tomorrow I have a cardiology exam for my medical degree... Gosh thank you so much mr. Armando for explaining me where the MAP equation comes from. Bless u man
@@alias1267 ti’s the mean value, not the average value. The reason for this is because during a cardiac cycle the heart spends more time in diastole than in systole. MAP computes as: MAP = Diastolic BP + [0.333 (Systolic - Diastolic BP)] Hope this helps!
Did not help me but with comments I saw I can say im looking for something from emergency medicine pov. If you could explain this from EMS POV. I may be on the wrong forum.
Lets say you measure and patient has BP 180/170 would you take it town and record or think something wrong with measuring? If you think its wrong, what no. Difference then is adequate difference between systole and diastole that will make you take it to record.
Can someone explain to why increased SVR results to increase cardiac output? I still don't get it why these are proportional. I know there's something wrong about my understanding because the way I see it if there is increased resistance that means it can't easily pass through so why the output increased if resistance is also increased😂. Please someone explain
Hi, I think instead of thinking of th volume passing through, rather think of the pressure the blood put on vessels when they are narrow as opposed to when the vessels are larger. Hope it helps.
@@Letlhogonolo2020 Thank you for the answer. Yeah I guess it's when the blood pressure is high the left ventricle pumps harder hence the increase in cardiac output.
By the way, the reason that the MAP is about 1/3 of the difference between systolic and diastolic pressure is because the heart spends about 2/3 of the time in diastole (relaxed) and 1/3 of the time in systole (1/3), causing the mean to be closer to the diastolic pressure.
Surely peoples hearts varies in size ... or is there a fibonacci harmony between the size of the chambers, giving the common denominator 0.333 ...?
@@terryernest6264 It has nothing to do with the size of the heart. It is about the time spent in diastole vs systole. Even if they were different sizes, this principle still applies.
@@brcarter1111... Thanks for that :) ... I guess there are other controlling mechanisms like Bradycardia thyroid and the Kidneys ...?
I'm having a hard time to understand the Mean Arterial Pressure (MAP), and tomorrow I have a cardiology exam for my medical degree... Gosh thank you so much mr. Armando for explaining me where the MAP equation comes from. Bless u man
explain please i still dont understand
i still dont understand the reason we need to know this. isnt this just the average resistance in the vascular system?
Yes bro... MAP IS THE PRESSURE THAT IS EXERTES AND USED TO DRIVE THE BLOOD IN ARTERIES FOR ONE CARDIAC CYCLE... HOPE YOU UNDERSTAND😉
@@alias1267 ti’s the mean value, not the average value. The reason for this is because during a cardiac cycle the heart spends more time in diastole than in systole. MAP computes as:
MAP = Diastolic BP + [0.333 (Systolic - Diastolic BP)]
Hope this helps!
@@jelleleeuwis4353 It at least helped me a year later.. Thank you for your comment!
just provide one full picture of the chart that you get at the end for explaining a topic it will be good to take a screenshot for revisions
Increase resistance increase arterial pressure
But
Increase resistance decrease cardiac output?how
I am a nursing student; this was super helpful, thank you.
The visual of the MAP equation at the end is very helpful, thank you so much.
Excellent video Armando, MAP can sometimes be a bit tricky to understand, you explained it very simply, well done
Sir your work is awesome
Your way of teaching simple and memorable💯💯💯💯💯💯
Thank you so much, I have CVS module going on and this is such a huge help
Awesome
Thankyou so much for this amazing video sir!❤ Understood very well with ur excellent presentation..❤️
Did not help me but with comments I saw I can say im looking for something from emergency medicine pov. If you could explain this from EMS POV. I may be on the wrong forum.
Could someone name studies that this video was based on? I would really appreciate.
Medicine.
There's literally a link that says "Where do I get my information from"
line of physiology playlist a bit irregular cant you fix it?
Thank you that was very well explained. . But please don't use that yellow pen cause it's not very clear in the video
Such a great video! Thank you sooo much!!
Lets say you measure and patient has BP 180/170 would you take it town and record or think something wrong with measuring?
If you think its wrong, what no. Difference then is adequate difference between systole and diastole that will make you take it to record.
Good job.. Thank you 💚
Cardiovagal centre*
Can someone explain to why increased SVR results to increase cardiac output? I still don't get it why these are proportional. I know there's something wrong about my understanding because the way I see it if there is increased resistance that means it can't easily pass through so why the output increased if resistance is also increased😂. Please someone explain
Hi, I think instead of thinking of th volume passing through, rather think of the pressure the blood put on vessels when they are narrow as opposed to when the vessels are larger. Hope it helps.
When the blood vessel is narrow, the PRESSURE will be HIGHER
@@Letlhogonolo2020 Thank you for the answer. Yeah I guess it's when the blood pressure is high the left ventricle pumps harder hence the increase in cardiac output.
lujain says hi
nice always wondered what blood pressure is where it is measured and how I can apply Bernoulli's equations
Thank you so much for your work
such videos preserve the zest for biology
❤
Wow...❤️ Wisdom
Thanks sir
Amazing
The last part was not that much clear
Thanks!
Dude i cant thank u enough!!! You are AWESOME 😗
Excellent
Thank you
Explained very beautifully
Thank u so much
This is great..Thank you
Thank you! Just amazing!
Fantastic man...thanks alot
This is awesome! Thank you so much!
This's what I need! Thankss!
thnx doc
Thank you
Thank you
❤️❤️💚💚
FIRST COM!! NEEDED I HAVE MY FINAL PHYSIOLOGY EXAM NEXT WEEK !
Beautifully described the whole matter. Stay blessed ❤
Isn't the equation: MAP = (CO*SVR) + CVP?
Yeah cardiac output * total peripheral resistance equals blood pressure
Thank you!