[The development of the early genital anlage and its significance for the development of the large intestine--studies of rat embryos].
The morphology of infraumbilical malformations suggests that the development of the genital anlage is of great importance for the embryology of the cloaca. In rat embryos the development of the genital anlage is documented using scanning electron microscopy. This documentation suggests that the genital anlage develops in three phases. Of these, the development of the unpaired glandular hillock seems to be especially important. The genital anlage affects the development of the cloaca in two ways: firstly its ventral growth causes a ventral shifting of the greater part of the cloaca into the region of the genitalia and secondly the cloaca gains its definite position through the development and growth of the glandular hillock.
Kluth
D
D
Kinderchirurgische Abteilung, Med. Hochschule Hannover.
Klossok
M
M
Mildenberger
H
H
D000818:Animals; D002988:Cloaca / Q000196:embryology*; D004627:Embryonic Induction; D005260:Female; D005836:Genitalia, Female / Q000196:embryology*; D005837:Genitalia, Male / Q000196:embryology*; D008297:Male; D011247:Pregnancy; D051381:Rats; D011919:Rats, Inbred Strains
Die Entwicklung der frühen Genitalanlage und ihre Bedeutung für die Enddarmentwicklung-Untersuchungen an Rattenembryonen.