Filtration at the glomerulus is inversely related to a. water reabsorption, b. capsular hydrostatic pressure, c. arterial blood pressure, d. acidity of the urine.

Video transcript

Hello everyone and welcome to today's video. So which of the following inhibits filtrate formation by opposing hydrostatic pressure in the glomerular capillaries. As answer choice A we have hydrostatic pressure in the capsular space. B, colloid osmotic pressure in glo metaller capillaries, C colloid osmotic pressure in the capsular space D both A and be both A and C. Now, in order to solve this problem, we're going to look at each of our answer choices beginning by answer choice C we have colloid osmotic pressure in the capsular space. Now, although theoretically they call it osmotic pressure in the capsular space will pull filtrate into the tubule. We know that the pressure here is essentially zero because virtually no proteins enter the capsule. So this is an essentially zero pressure and it will not be able to oppose this hydrostatic pressure. Therefore, we can cancel it out. Then we have both A and B A is going to be hydrostatic pressure. In the capsular space. B is going to be the osmotic pressure, low Metaller copiers. Now, we know that this hydrostatic pressure in the capsular space is the pressure exerted by fil tree in the glomerular capsule this is going to be much higher than the hydrostatic pressure surrounding most capillaries because the filtrate is confined to a very small space. Therefore, we can say that it opposes this hydrostatic pressure and we're going to not cancel it out. Then we have B which is colloid osmotic pressure in glome coar while these pressure is a pressure exerted by proteins just like the Cholo osmotic pressure in the. But here we do have proteins, these proteins are going to suck water into the capillary which is going to oppose the hydrostatic pressure. Therefore, we cannot cancel it out because we were not able to cancel out answer choices A and B, we can select answer choice D both A and B as a final answer to our question, I really hope this video helped you and I hope to see you on the next one.