Term: pectoral fin middle migratory muscle precursor stream
Name: pectoral fin
Synonyms: forefin, pectoral fins
Definition: Paired fin that is located in the thoracic region of the body.
Ontology: Anatomy Ontology [ZFA:0001161]

Name: middle migratory muscle precursor stream
Synonyms: middle migratory muscle precursor stream
Definition: Muscle precursor stream that originates from the ventral regions of somites 2-4 and migrates toward the pectoral fin bud. Migratory muscle precursors from this stream contribute to the pectoral fin musculature and make a small contribution to the posterior hypaxial muscle.
Ontology: Anatomy Ontology [ZFA:0005924]