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@amymathew4969
3 жыл бұрын
This was a brilliant explanation ! Cuz of this video I finally understood these concepts. Thank you sir .
@vab3r269
4 жыл бұрын
finally i understand the Fahraeus - Lindquist effect, thank you Sir :D
@thakurkirpa5464
Жыл бұрын
Very beautiful explanation.... 🙏👌
@tomcruise9317
Жыл бұрын
in our house hold pipe asume there is water flowing at constant ... if i obstruct the pipe slightly we can see the velocity is increased .....but obstructed part as arteroles which offer resistance as per book they are resistance vessel so they reduce the flow and cross section area is small so velocity must decrease but you see in the above pipe when i obstruct velocity is not decreased and its seems flow is also increased ......and also the forward pressure too increased ....what is really happneing in our body sir
@tomcruise9317
Жыл бұрын
Sir if atrial repolarisation is measured the wave will be upright (positive ) or negative.....
@tomcruise9317
Жыл бұрын
Sir how can we meaaure voltage from heart in ecg ....if we can measure voltage there must be flow of electron i can imagin how heart act as a battry .in book heart is compared to dipole ....can you explain...
@narasimha7870
4 жыл бұрын
Sir why Newtowian fluids have same viscosity and why blood at high velocity rate viscosity becomes constant??? And sir which book to refer for biophysics physiology for post-graduate?
@VivekSirsPhysiology
4 жыл бұрын
Water and plasma form uniform layered structures while passing through a tube. There is a steady velocity gradient between any of the two layers. This makes the viscosity to remain constant. In the case of blood, the red cells suspended in plasma make this velocity gradient between two layers to change at different velocities. At lower velocities, the red cells create a drag between two layers, increasing the viscosity. However, at higher velocity, this viscous drag gets minimized.
@narasimha7870
4 жыл бұрын
@@VivekSirsPhysiology thanks sir 🙏
@engineeringnerds16
2 жыл бұрын
Because in liquids there something called boundry layer phenomenon which has significant length in small velocity of fluid as velocity increases boundry layer thickness reduces and we get almost constant velocity profile... So the viscosity effect only around the edges of the tube with small length..... As you increase further flow it becomes turbulent viscous effect further drops down..... Also if you increase temperature the viscosity of fluid reduces.....
@jayaprakash8197
10 ай бұрын
I have purchased neocortex full text pdf, please explain how to open video link from the fownloaded files
@VivekSirsPhysiology
10 ай бұрын
Oh. Are they not clickable?
@VivekSirsPhysiology
10 ай бұрын
I’ll ask the back up team to look into it. Generally speaking, those links are clickable. If you have the soft copy, simply click on the links. But anyway, I’ll ask the back up team to get in touch with you.
@jayaprakash8197
10 ай бұрын
No sir
@jayaprakash8197
10 ай бұрын
Thank you sir
@InquilineKea
Жыл бұрын
Hematocrit influences viscosity that much!!
@debismitanayak4575
2 жыл бұрын
Which book refere for biofluid mechanics
@VivekSirsPhysiology
2 жыл бұрын
R N Roy's book on biophysics is a good one. Comprehensive. Good for medical and related courses.
@tomcruise9317
Жыл бұрын
Sir in laminar flow rbc will move perephery next platelets next wbc center plasma will flow am i correct sir....
@VivekSirsPhysiology
Жыл бұрын
Yes partly correct. In laminar flow, there are laminae of blood. And RBCs are said to be travelling between the laminae.
@tomcruise9317
Жыл бұрын
@@VivekSirsPhysiology density vs viscosity what is the difference reynold number increase if density increase by decrease if viscosity increase how sir.....density is mass ×volume so if if fluid is dense it must reduce the flow so reynold number must decrease ....but its opposit in formula how...
@MubashraZahoor
2 жыл бұрын
👍
@narasimha7870
4 жыл бұрын
Please reply sir which book?
@VivekSirsPhysiology
4 жыл бұрын
Yes. I have referred biophysics from Samson & Wright, Boron & Boulpaep, and Best & Taylor. But wait, i'll mention the exclusive biophysics book.
@NEETmedicalGK
2 жыл бұрын
Thanks Sir. Subscribe
@khaerychandra934
2 жыл бұрын
i watching this video because im a visual effect artist, haha
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