Anastomosis n. (pl. anastomoses) (Anat. & Bot.) The inosculation of vessels, or intercommunication between two or more vessels or nerves, as the cross communication between arteries or veins.
...anastomosis radiate two main groups of arterial branches, an ascending group and a descending one. The ascending branches penetrate the substance of the os pedis, and emerge by the numerous foraminae on its laminal surface. The ... — Diseases of the Horse's Foot • Harry Caulton Reeks