title: Anatomical closure of the ductus arteriosus in the dog (Canis familiaris).
abstract: The ductus arteriosus was studied in 138 dogs (80 female and 58 male) aged from 6 h to 21 days. This experiment led us to conclude that the anatomical closure of the d. arteriosus starts within 96 h and is obliterated after 6 days in 100% of the animals studied. We have also evidenced that the closure starts in the medial part of the d. arteriosus and progresses to the pulmonary artery and aorta.
mesh_terms: D000367:Age Factors; D000818:Animals; D000831:Animals, Newborn; D004285:Dogs / Q000033:anatomy & histology*; D004373:Ductus Arteriosus / Q000033:anatomy & histology* / Q000502:physiology; D005260:Female; D008297:Male