Name:	somite 15
Synonyms:
Definition:	Undifferentiated mesodermal component of early trunk segment 15 or metamere, derived from paraxial mesoderm; forms the myotome, sclerotome and perhaps dermatome.
Ontology:	Anatomy Ontology [ZFA:0000852]

Name:	Z disc
Synonyms:	Z band, Z disk, Z line
Definition:	Platelike region of a muscle sarcomere to which the plus ends of actin filaments are attached.
Ontology:	GO: Cellular Component [GO:0030018] QuickGO AmiGO