Term: muscle T-tubule
Name: muscle
Synonyms: muscles
Definition: Portion of tissue composed of contractile fibers.
Ontology: Anatomy Ontology [ZFA:0005145]

Name: T-tubule
Synonyms: transverse tubule, triad
Definition: Invagination of the plasma membrane of a muscle cell that extends inward from the cell surface around each myofibril. The ends of T-tubules make contact with the sarcoplasmic reticulum membrane.
Ontology: GO: Cellular Component [GO:0030315]    QuickGO    AmiGO