| The topographical relation of the head of the pancreas to the ductus choledochus is of clinical importance. |
| The ductus arteriosus usually closes within 24 hours of birth and is obliterated anatomically in 1-8 weeks. |
| The vibration created is more subtle, and only based on our analysis of the gesture of the ductus of the sign. |
| In Elasmobranchii the primitive median diverticulum gives rise to the ductus choledochus. |
| In most centres, surgical ligation is reserved for instances where the ductus remains open despite pharmacological treatment. |
| These anomalies include patent ductus arteriosus, vascular ring, and coarctation of aorta. |
