Anhui Medical University Development of nephrons Metanephric vesicles formed in metanephrogenic tissue,which elongate to form S-shaped tubules Capillaries grow into and form glomeruli Mesenchyme Aggregate Collecting Renal capsule ducts Metanephric vesicle "S"shaped and renal tubule body capsule Connect with Glomerul Distal tubule arched collecting Loop of Henle tubules Promximal tubule
Anhui Medical University Metanephric vesicles formed in metanephrogenic tissue, which elongate to form S-shaped tubules Capillaries grow into and form glomeruli . Renal capsule and renal tubule Connect with arched collecting tubules Development of nephrons
Anhui Medical University 4 Ascent of Kidneys >The kidney,initially in the pelvic region,with their hila pointed anteriorly >eventually come to lie in a retroperitoneal position at the level of lumbar 1(L1)by the ninth week >Function of the permanent kidney begins at month 3rd. Suprarenal gland Mesonephros Suprarenal artery Aorta Suprarenal gland Gonad 游s Kidney Renal artery Left kidney Mesonephric duct Ureter Bladder byThe Mer-Hl compan
Anhui Medical University The kidney, initially in the pelvic region, with their hila pointed anteriorly eventually come to lie in a retroperitoneal position at the level of lumbar 1(L1) by the ninth week Function of the permanent kidney begins at month 3rd. 4 Ascent of Kidneys
Anhui Medical University Causes of ascent of kidney: >As the pelvis and abdomen grow,the kidneys slowly move upward.By the seventh week,the hilum points medially and the kidneys are located in the abdomen. >caused by diminution of body curvature and by growth of the body in the lumbar and sacral regions
Anhui Medical University Causes of ascent of kidney: As the pelvis and abdomen grow, the kidneys slowly move upward. By the seventh week, the hilum points medially and the kidneys are located in the abdomen. caused by diminution of body curvature and by growth of the body in the lumbar and sacral regions
Anhui Medical University 4.Development of Bladder and urethra ☆Cloaca: Just superior to the cloaca membrane,the primitive gut forms an expansion >The urogenital sinus is formed by the division of the cloaca by the uro-rectal septum cloaca
Anhui Medical University 4. Development of Bladder and urethra Cloaca: Just superior to the cloaca membrane, the primitive gut forms an expansion The urogenital sinus is formed by the division of the cloaca by the uro-rectal septum cloaca