Term: ventricular myocardium M band
Name: ventricular myocardium
Synonyms:
Definition: Muscular layer of the cardiac ventricle composed of a compact myocardial layer surrounding the trabecular layer.
Ontology: Anatomy Ontology [ZFA:0005061]

Name: M band
Synonyms: M disc, M line, mesophragma, midline
Definition: The midline of aligned thick filaments in a sarcomere; location of specific proteins that link thick filaments. Depending on muscle type the M band consists of different numbers of M lines.
Ontology: GO: Cellular Component [GO:0031430]    QuickGO    AmiGO