Term: bulbus arteriosus vascular endothelium
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: vascular endothelium
Synonyms: endothelia
Definition: Simple squamous epithelium which lines blood and lymphatic vessels and the heart.
Ontology: Anatomy Ontology [ZFA:0001639]