Heavy bleeding after childbirth (postpartum haemorrhage) Heavy bleeding after childbirth is also known as postpartum haemorrhage (PPH), and is an emergency complication of childbirth. Postpartum haemorrhage is defined as a loss of 500ml or more blood from the genital tract in the first 24 hours after giving birth.
The afferent arterioles are a group of blood vessels that supply the nephrons in many excretory systems.They play an important role in the regulation of blood pressure as a part of the tubuloglomerular feedback mechanism.he afferent arterioles are a group of blood vessels that supply the nephrons in many excretory systems.
Afferent Arteriole-The blood vessel supplying a nephron. Efferent Arteriole-The blood vessel draining a nephron. Peritubular Capillaries-The network of tiny blood vessels that surrounds the proximal and distal tubules in the kidney.Vasa Recta-The capillary system that serves the loop of Henle.Renal Artery-The blood vessel bringing blood to the kidney.actors governing the filtration rate at the capillary beds are: (1) total surface area available for filtration (2) filtration membrane permeability (3) net filtration pressure GFR is directly proportional to net filtration pressure because the capillaries are exceptionally permeable and have a huge surface area.