Here’s my assessment.
The efferent arteriole has a smaller diameter than the afferent arteriole.
This causes a blood back-up in the glomerular capillaries.
Therefore, fluid and solute are forced out from the blood and into the glomerular capsule.
The glomerular blood hydrostatic pressure (##”GBHP”##) of 55 mmHg favours filtration.
However, the solute concentration in the glomerular capillaries is greater than that on the other side of the glomerular membrane.
Thus there is a blood colloid osmotic pressure (##”BCOP”##) of 30 mmHg that opposes filtration.
The Bowman’s capsular hydrostatic pressure (##”CHP”##) of 15 mmHg in the Bowman’s capsule also opposes filtration.
The net filtration pressure (##”NFP”##) is
##”NFP” = “GBHP- BCOP – CHP” = “55 mmHg – 30 mmHg – 15 mmHg” = “10 mmHg”##
The glomerular filtration rate (##”GFR”##) is directly proportional to the ##”NFP”##.
The ##”GBHP”## must be precisely regulated, because a drop of less than 20 % will stop filtration completely.
If that happens, many substances discharged in the urine will be resorbed.
The maintenance of sodium balance and control of body fluid volume will be severely compromised.
“Looking for a Similar Assignment? Order now and Get 10% Discount! Use Code “Newclient”
The post How is a high blood pressure built up in a glomerulus? Why is this high blood pressure needed? appeared first on Psychology Homework.
Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.
You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.Read more
Each paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.Read more
Thanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.Read more
Your email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.Read more
By sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.Read more