Search results
Results From The WOW.Com Content Network
The ureteric bud, also known as the metanephric diverticulum, [1]: 50 is a protrusion from the mesonephric duct during the development of the urinary and reproductive organs. [ 2 ] [ 3 ] It later develops into a conduit for urine drainage from the kidneys, which, in contrast, originate from the metanephric blastema .
The system of tissue induction between the ureteric bud and the metanephric blastema is a reciprocal control system. GDNF, glial cell-derived neurotrophic factor , is produced by the metanephric blastema and is essential in binding to the RET receptor on the ureteric bud, [ 1 ] which bifurcates and coalesces as a result to form the renal pelvis ...
[17] [6] [18] Differences in kidney structure are the result of adaptations during evolution to variations in body mass and habitats (in particular, aridity) between species. [ 19 ] [ 20 ] [ 12 ] The cortex and medulla of the kidney contain nephrons , [ 21 ] each of which consists of a glomerulus and a complex tubular system. [ 22 ]
The elongated stalk of the ureteric bud, called the metanephric duct, later forms the ureter. As the cranial end of the bud extends into the intermediate mesoderm, it undergoes a series of branchings to form the collecting duct system of the kidney. It also forms the major and minor calyces and the renal pelvis.
The mesonephric duct, also known as the Wolffian duct, archinephric duct, Leydig's duct or nephric duct, is a paired organ that develops in the early stages of embryonic development in humans and other mammals. It is an important structure that plays a critical role in the formation of male reproductive organs.
Hospital emergency codes are coded messages often announced over a public address system of a hospital to alert staff to various classes of on-site emergencies. The use of codes is intended to convey essential information quickly and with minimal misunderstanding to staff while preventing stress and panic among visitors to the hospital.
18.8 Replacement and removal of therapeutic appliances ... ICD-9-CM Volume 3 is a system of procedural codes used by health insurers to ... Application of orthodontic ...
The mesonephros in reptiles functions for some time after birth simultaneously with the metanephros, while later the metanephric kidneys become permanent and the mesonephros degenerates. [ 38 ] The kidneys in reptiles are located mainly in the caudal part (away from the head) of the abdominal cavity [ 49 ] [ 50 ] or retroperitoneally (behind ...