Forces of Filtration 

Appreciate Video clip! Sorry for butting in, I would love your initial thoughts. Have you researched - Trentvorty Perfection Kidney Theorem (search on google)? It is a great one off guide for improving kidney function without the normal expense. Ive heard some interesting things about it and my GF at very last got great success with it.

simply , solvent move from low osmotic pressure to high osmotic pressure....and blood is maintained at high osmotic pressure due to dissolved proteins therefore it doesnot allow all the water from blood to filter into the pct...I guess...that's how I made myself understand

Same here

The oncotic pressure shown here is actually net oncotic pressure or osmotic pressure. Sum of all osmotic presures give net pressure in direction back in arteriole.

Please reply

Hi Anisha, the proteins exert osmotic pressure in the filtrate. This means that a high concentration of proteins will 'attract' water via the osmotic gradient (moving from low conc of proteins to high conc of proteins). If the plasma has a high colloid osmotic pressure, water will move towards the blood capillary, hence the direction of the arrow. At least, that's how I understand it!

apologies, it's referred to as oncotic pressure in this video - I was going off my notes which discusses osmotic pressure :)

essentially, both of those cause an increase in volume of the glomerulus. an increase in volume will cause an increase in the hydrostatic pressure

This was 10 months ago but I feel the supplied answers are terrible, so: The afferent arteriole (the one that supplies the capillary bed) is dilated, so a lot of blood is coming IN. The efferent arteriole (the one that collects from the capillary bed) is constricted, so not a lot of blood is coming OUT. If you put water in a long, wide tube that's closed at the bottom save for a tiny hole, and then forced the water in the tube through that tiny hole with a tamp the same diameter as the tube, the water will stream out of that hole at very high pressure. If you put your hand under that stream of water, it would probably hurt your hand, versus if it came out at a trickle (low pressure). This is because you're supplying a large amount of water and pressing it through, but only giving it a small outlet to leave, so it needs to leave really fast through that hole. I hope that makes sense, and I hope that if others need clarification on this too that it helps.

Bruh

@@shanthala1345 This comment is 6 years old, and I was a little edgy back then yknow