Vascular Physiology (Organ blood supply: part 6/6)
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Uploader Comments (hyperhighs)
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Thanks so much for contributing in an excellent teaching manner to the understanding of vascular physiology.
It is very helpful and illustrative.
Please, keep up this excellent work with different subjects.
3 years ago 4
All Comments (22)
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@9partyboy The pule for the whole body is the same...
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Why does the pulse rate in the carotid artery in the neck increase as we exercise if the amount of blood that the goes to the brain remains the same?
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Thank you for this 6-part series. It was so helpful for my online a&p class. Blessings to you and yours.
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Thank you for this 6-part series. It was so helpful for my online a&p class. Blessings to you and yours.
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so, how does total peripheral resistance affect blood flow?
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Veins are called capacitance vessels. Meaning, they accommodate large amount of blood, and since less active than the arteries, they are prone to blood clots, due to stagnation, blood that just sits there, like in being in an airplane for a long time.
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Awesome....
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after just finishing watching all your cardio physiology tutorials i just want to say you should be nominated for the teacher of the year award!!! thanks!extremely helpfull
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Awesome videos, thank you very much! Just a little correction - although you're RIGHT in saying "the brain is receiving the same AMOUNT of blood no matter what you're doing", it does not remain 15% but becomes something like 3% to the the brain during exercise as cardiac output increases from ~5 l/min to ~25 l/min.
sairawaraich 2 years ago 3
Oh yes, i know exactly what you mean. Thank you for the correction.
hyperhighs 2 years ago
Isn't the total resistans (at 4:50) 1/R =1/R1+1/R2+1/R3 etc. ? Othervise the resistance would increase when you add a paralell blood vessel :P
But thanx for this videos their really great to refresh your memory :)
JaniDaLa 3 years ago
Yes, you are correct. You certainly do decrease the resistance with each added parallel vessel. In fact, having watched this again, i realized that i should not have used the term "TPR" for those parallel vessels. TPR is the total resistance of ALL the arterioles in your body, and not just one group of parallel vessels.
hyperhighs 3 years ago 2