title: The influence of muscular work on the capillary density in the heart and skeletal muscle of pigeon (Columbia livia dom.).
mesh_terms: D000818:Animals; D001835:Body Weight; D002196:Capillaries; D010856:Columbidae; D003331:Coronary Vessels; D005426:Flight, Animal; D006321:Heart / Q000033:anatomy & histology; D006454:Hemoglobins / Q000032:analysis; D009132:Muscles / Q000032:analysis / Q000098:blood supply* / Q000502:physiology; D009584:Nitrogen / Q000032:analysis; D009929:Organ Size; D005082:Physical Exertion; D013909:Thorax / Q000033:anatomy & histology; D014867:Water / Q000032:analysis
chemical_list: D006454:Hemoglobins; D014867:Water; D009584:Nitrogen