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.
Efferent arteriole. The arteriole that carries the concentrated blood (more cells, less plasma) away from the glomerulus and to the peritubular capillaries. It has a smaller lumen than the afferent arteriole.ubular Secretion: Selective transfer from peritubular capillary into tubular lumen to be excreted. Second route for entering the renal tubules from blood. Mostly into Distal convoluted tubule & Collecting duct: Excess H+ (pH balance) & excess K+ (membrane potential) (secreted) removed from blood.