Term Name: myofibril
Synonyms: striated muscle fiber, striated muscle fibre
Definition: The contractile element of skeletal and cardiac muscle; a long, highly organized bundle of actin, myosin, and other proteins that contracts by a sliding filament mechanism.
Ontology: GO: Cellular Component [GO:0030016]   QuickGO   AmiGO

Relationships
has parts: costamere myofilament sarcomere
is a type of: contractile fiber
has subtype: cardiac myofibril skeletal muscle myofibril