title: Normal blood supply to the human His bundle and proximal bundle branches.
mesh_terms: D000293:Adolescent; D000328:Adult; D001158:Arteries / Q000033:anatomy & histology; D002102:Cadaver; D003097:Collateral Circulation; D003326:Coronary Circulation; D003331:Coronary Vessels / Q000033:anatomy & histology; D006329:Heart Conduction System / Q000033:anatomy & histology / Q000098:blood supply*; D006801:Humans; D008875:Middle Aged; D010784:Photomicrography