Development of Hindgut Flashcards
Hindgut Diverticulum
allantois
Hindgut divided into two by
Urorectal septum
Urorectal septum divides _____ into two
Hindgut
Two parts of Hindgut
Primitive urogenital sinus and Primitive rectum
Primitive urogenital sinus - parts
Vesicourethral sinus and Definitie Urogenital sinus
Primitive rectum forms
Rectum and anal canal till pectinate line
Anal membrane formed from
dorsal cloacal membrane
Junction of Hindgut and Proctodaeum
Pectinate line
Pectinate line - location
Junction of Hindgut and Proctodaeum
Vesicourethral sinus - parts
Vesicle part and Urethral part
Vesicle part of Vesicourethral sinus gives rise to
Bladder
Bladder - origin
Vesicle part of Vesicourethral sinus - Endoderm
Trigone of bladder - Mesodermal.
Trigone of bladder - origin
Mesoderm - absorption of Mesonephric duct
Absorption of Mesonephric duct - gives rise to
Trigone of bladder
Definitie Urogenital sinus - parts
Pelvic and phallic part
Urethra - origin in males
Prostatic urethra - Urethral part of vesicourethral sinus
Membranous urethra - Pelvic part of UG sinus
Penile urethra - Phallic part of UG sinus
Urethra - origin in females
Urethral part of vesicourethral sinus and Pelvic part of UG sinus.
What happens to Phallic part of UG sinus in females
forms Vestibule.
Anal canal derived from
Primitive rectum and Proctadeum.
Patent urachus
Urachus fistula - urine at umbilicus
Urine at umbilicus is seen in
Patent Urachus or Urachus fistula.
Urachus is formed by
Allantois