DEVELOPMENT OF UTERUS
– Paramesonephric duct develops as a longitudinal invagination of coelomic cavity
into mesoderm, lateral to mesonephric duct.
It consists of 3 parts:
• Cranial part: descends vertically lateral to mesonephric duct. Its free cranial end
opens into peritoneal cavity.
• Intermediate part: crosses horizontally ventral to mesonephric duct to come
into its medial side.
• Caudal part: descends vertically medial to tne mesonephric duct. It fuses with
its partner of opposite side & septum in [ ] disappears to form utero-vaginal
primordium that extends between urogenital sinus & anorectal canal.
Its caudal end projects into dorsal wall of definitive urogenital sinus as an
elevation called Mullarian tubercle.
• Muscles of uterus: develop from surrounding mesoderm
– Paramesonephric duct develops as a longitudinal invagination of coelomic cavity
into mesoderm, lateral to mesonephric duct.
It consists of 3 parts:
• Cranial part: descends vertically lateral to mesonephric duct. Its free cranial end
opens into peritoneal cavity.
• Intermediate part: crosses horizontally ventral to mesonephric duct to come
into its medial side.
• Caudal part: descends vertically medial to tne mesonephric duct. It fuses with
its partner of opposite side & septum in [ ] disappears to form utero-vaginal
primordium that extends between urogenital sinus & anorectal canal.
Its caudal end projects into dorsal wall of definitive urogenital sinus as an
elevation called Mullarian tubercle.
• Muscles of uterus: develop from surrounding mesoderm
