title: The time course of lymph drainage from the peritoneal cavity in beagle dogs.
abstract: Lymph drainage routes from the abdominal and pelvic cavities in beagle dogs were observed serially by following the time course of India ink administered intraperitoneally. Four systems of lymph drainage routes from the peritoneal cavity were observed in this study. The earliest drainage returned to the cranial mediastinal lymph nodes via the sternal lymph vessels; subsequently, the sternal lymph nodes located along the internal thoracic artery became involved. Then, a drainage route via the lymph vessel along the left vagus nerve was observed. The final drainage route flowed into the lateral lymph vessel through the thoracic duct located on the vertebra. These results show that India ink is absorbed from the peritoneal cavity, and that the lymph drainage first flows mainly towards the cranial mediastinal lymph nodes through the ventral lymphatic channels. Our serial observations suggest that, over time, the lymph drainage routes changed from the ventral abdominal to the dorsal thoracic lymphatic channels in the thorax.
authors.affiliation: Laboratory of Anatomy 1st, School of Veterinary Medicine, Azabu University, Kanagawa, Japan.
authors.forename: Shin-ji
authors.initials: SJ
authors.lastname: Shibata
authors.forename: Yuji
authors.initials: Y
authors.lastname: Hiramatsu
authors.forename: Misato
authors.initials: M
authors.lastname: Kaseda
authors.forename: Mizuki
authors.initials: M
authors.lastname: Chosa
authors.forename: Nobutsune
authors.initials: N
authors.lastname: Ichihara
authors.forename: Hajime
authors.initials: H
authors.lastname: Amasaki
authors.forename: Toshiyuki
authors.initials: T
authors.lastname: Hayakawa
authors.forename: Masao
authors.initials: M
authors.lastname: Asari
mesh_terms: D000818:Animals; D002244:Carbon; D004285:Dogs / Q000502:physiology*; D042601:Lymphatic Vessels / Q000033:anatomy & histology*; D008297:Male; D010529:Peritoneal Cavity / Q000033:anatomy & histology*; D013997:Time Factors
chemical_list: C028433:chinese ink; D002244:Carbon