Term: bulbus arteriosus smooth muscle
Name: bulbus arteriosus
Synonyms: cardiac outflow tract, outflow tract, truncus
Definition: Multi-tissue structure that consists of three layers and through which the blood exits the heart. The bulbus arteriosus is a pear shaped chamber that functions as a capacitor, maintaining continuous blood flow into the gill arches.
Ontology: Anatomy Ontology [ZFA:0000173]

Name: smooth muscle
Synonyms:
Definition: A non-striated muscle that is composed of spindle-shaped cells. Smooth muscle usually is organized into sheets that line cavitated organs.
Ontology: Anatomy Ontology [ZFA:0005274]