atrioventricular (AV) nodal branches

a·tri·o·ven·tric·u·lar (AV) no·dal branch·es

(ā'trē-ō-ven-trik'yū-lăr nō'dăl branch'ĕz)

Small arteries supplying the AV node; usually arise from the right coronary artery as it starts to descend the posterior interventricular sulcus.
Synonym(s): artery to atrioventricular node, branch to atrioventricular node, ramus nodi atrioventricularis.