• This filtrate flows through the mesonephric tubule and is drained into the continuation of the pronephric duct, now called the mesonephric duct or Wolffian duct. (wikipedia.org)
  • These tubules receive a tuft of capillaries from the dorsal aorta - allowing for the filtration of blood - and they drain into the mesonephric duct (a continuation of the pronephric duct). (teachmeanatomy.info)
  • Each mesonephric tubule receives a blood supply from a branch of the aorta, ending in a capillary tuft analogous to the glomerulus of the definitive nephron. (wikipedia.org)
  • The mesonephric tubule forms a capsule around the capillary tuft, allowing for filtration of blood. (wikipedia.org)
  • Each collecting tubule from the collecting system is covered by a metanephric tissue cap which gives rise to the excretory tubules. (teachmeanatomy.info)
  • After inducing the metanephric mesenchyme the lower portions of the nephric duct will migrate caudally (downward) and connect with the bladder, thereby forming the ureters. (wikipedia.org)
  • The metanephric mesenchyme (mm, dark grey) lies posterior and dorsal to the mesonephros and will develop into the metanephros (kidney). (atlas-d2k.org)
  • The nephric duct lies ventral to the mesonephros and metanephric mesenchyme. (atlas-d2k.org)
  • At this stage, the ureteric bud has not yet emerged from the nephric duct, and the region of the nephric duct adjacent to the metanephric mesenchyme is called the nephric duct metanephric portion (nd-mm, orange). (atlas-d2k.org)
  • During the fifth week of gestation, the mesonephric duct develops an outpouching, the ureteric bud, near its attachment to the cloaca. (wikipedia.org)
  • The elongated stalk of the ureteric bud, called the metanephric duct, later forms the ureter. (wikipedia.org)
  • Additionally, the mesonephric duct sprouts the ureteric bud caudally, which induces the development of the definitive kidney. (teachmeanatomy.info)
  • The ureteric bud from the mesonephric duct makes contact with a caudal region of intermediate mesoderm - the metanephric blastema (Fig 2) . (teachmeanatomy.info)
  • In this region, epithelial cells arrange themselves in a series of tubules called nephrotomes and join laterally with the pronephric duct. (wikipedia.org)
  • As it elongates caudally, the pronephric duct induces nearby intermediate mesoderm in the thoracolumbar area to become epithelial tubules called mesonephric tubules. (wikipedia.org)
  • These tubules join into the pronephric duct , which is a duct that extends from the cervical region to the cloaca (distal end) of the embryo. (teachmeanatomy.info)
  • First, the presence of the pronephric duct induces nearby intermediate mesoderm in the thoracolumbar region to form mesonephric tubules . (teachmeanatomy.info)
  • Cranial and caudal mesonephric tubules (mt, dark grey) develop within the mesonephros. (atlas-d2k.org)
  • The development of the pronephric duct proceeds in a cranial-to-caudal direction. (wikipedia.org)
  • The nephrotomes of the pronephros degenerate while the mesonephric duct extends towards the most caudal end of the embryo, ultimately attaching to the cloaca. (wikipedia.org)
  • In this region, epithelial cells arrange themselves in a series of tubules called nephrotomes and join laterally with the pronephric duct. (wikipedia.org)
  • The development of the pronephric duct proceeds in a cranial-to-caudal direction. (wikipedia.org)
  • As it elongates caudally, the pronephric duct induces nearby intermediate mesoderm in the thoracolumbar area to become epithelial tubules called mesonephric tubules. (wikipedia.org)
  • The nephrotomes of the pronephros degenerate while the mesonephric duct extends towards the most caudal end of the embryo, ultimately attaching to the cloaca. (wikipedia.org)
  • Within the comma, a group of cells farthest from the end of the metanephric duct becomes polarized and forms a central lumen and a basal lamina on the outer surface. (clinicalgate.com)
  • These early forms of the kidney are later supplanted by the definitive metanephric kidneys, but as they regress, certain components are retained to be reused by other components of the urogenital system. (clinicalgate.com)
  • During the early phases of migration of the metanephric kidneys, the mesonephric kidneys regress. (clinicalgate.com)
  • Methods: We used metanephric cultures of C57BL/6J (C57) mice expressing the Ahr b-1 allele and B6.D2N- Ahr d /J (D2N) mice expressing a mutant allele deficient in ligand binding ( Ahr d ) to investigate molecular mechanisms of renal development. (nih.gov)