These videos....are amazing! I appreciate the time and effort you put into your animations. My medical school professors simply use text to describe such loaded concepts which makes it so difficult to follow along, but your videos have be so helpful! Thank you!!!
One way to think about it is that there are 3 sections of pipe, each with their own pressures. The middle section of pipe happens to be influenced by the other two sections. But if we cut off the influence of the left or rightmost pipe, then the middle section’s pressure will only be influenced by the other section of pipe that remains open. For example, constricting the afferent arteriole to the point of almost closing it will decrease the pressure of the glomerular capillaries because now they are only influenced by the low pressure (efferent) pipe. And constricting the effect pipe leaves the glomerular capillaries being only influenced by the high pressure afferent pipe.
The afferent arterioles supply the blood to the glomerular capillaries, while the efferent arterioles receive blood from the glomerular capillaries. In addition, the efferent arterioles supply the peritubular capillaries which supply blood to the tubule for secretion and reabsorption.
in the first example,while afferent arteriole is being constricted,the volume of blood in capillaries will decrease and so the hydrostatic pressure will decrease; but due to constriction of arterioles,shouldn't the pressure at the arteriolar end increase? according to me the fall in capillary arteriolar pressure due to increased afferent arteriolar resistance outweighs the pressure increase due to afferent arteriolar constriction please do reply
Constriction in afferent arteriole decreases the blood flow in glomerular capillaries thus glomerular hydrostatic pressure decrease leading to decrease in GFR. Hope this clears ur doubt.
What is oncotic pressure? And ultrafiltration pressure? And hydrostatic pressure? The difference? Totally confused. I watched the video 5 times and still don't know what's going on.
Very good video with great explanation. However, it was way too monotonous with no pause in between the sentences, making it very difficult to understand. It felt robotic.
Hi, thanks for the well crafted feedback. I was worried about that very thing. Is there a topic you’re interested in? If so, I make a new video and try to improve on the delivery. Best, Dr. Miller
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These videos....are amazing! I appreciate the time and effort you put into your animations. My medical school professors simply use text to describe such loaded concepts which makes it so difficult to follow along, but your videos have be so helpful! Thank you!!!
I am in medical school, in our renal block, and these videos are so helpful! THANK YOU!
One way to think about it is that there are 3 sections of pipe, each with their own pressures. The middle section of pipe happens to be influenced by the other two sections. But if we cut off the influence of the left or rightmost pipe, then the middle section’s pressure will only be influenced by the other section of pipe that remains open. For example, constricting the afferent arteriole to the point of almost closing it will decrease the pressure of the glomerular capillaries because now they are only influenced by the low pressure (efferent) pipe. And constricting the effect pipe leaves the glomerular capillaries being only influenced by the high pressure afferent pipe.
That was an insane 3 mins of my life...
Thank u so much
After a 1 year I finally understand it.....credit goes to u👍
Wow this video cleared my all doubts...thank you!!
Very good and funny videos bring a great sense of entertainment!
How is afferent arteriole upstream to glomerular capillaries?
The afferent arterioles supply the blood to the glomerular capillaries, while the efferent arterioles receive blood from the glomerular capillaries. In addition, the efferent arterioles supply the peritubular capillaries which supply blood to the tubule for secretion and reabsorption.
in the first example,while afferent arteriole is being constricted,the volume of blood in capillaries will decrease and so the hydrostatic pressure will decrease; but due to constriction of arterioles,shouldn't the pressure at the arteriolar end increase?
according to me the fall in capillary arteriolar pressure due to increased afferent arteriolar resistance outweighs the pressure increase due to afferent arteriolar constriction
please do reply
Constriction in afferent arteriole decreases the blood flow in glomerular capillaries thus glomerular hydrostatic pressure decrease leading to decrease in GFR.
Hope this clears ur doubt.
not understanding
What is oncotic pressure? And ultrafiltration pressure? And hydrostatic pressure? The difference? Totally confused. I watched the video 5 times and still don't know what's going on.
i think you'll need some background info (previous renal knowledge) for this vid to make sense fully
Very good video with great explanation.
However, it was way too monotonous with no pause in between the sentences, making it very difficult to understand. It felt robotic.
Hi, thanks for the well crafted feedback. I was worried about that very thing. Is there a topic you’re interested in? If so, I make a new video and try to improve on the delivery.
Best,
Dr. Miller
Speaking too fast. Slow down a bit. Pause between sentences.
thank you! was helpful