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.
Remember that the afferent arteriole brings blood to the glomerulus and the efferent arteriole takes blood away from the glomerulus. The efferent arterioles either 1) carry blood to capillaries in the medulla (Vasa recta) or 2) form anastomotic capillaries in the cortex (peritubular plexus).he ARCUATE arteries (which arise from the interlobar arteries) run along the cortico-medullary junction and can be seen on cross section in histologic renal sections. Since this vessel courses through the cortico-medullary junction in the shape of an ARC, it is called the ARCUATE ARTERY.