Cell Ontology (CL) OWL View license
Last submission date February 13, 2024
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ID http://purl.obolibrary.org/obo/UBERON_0000948
http://purl.obolibrary.org/obo/UBERON_0000948
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Preferred name

heart

Synonyms

branchial heart

Definitions

Taxon notes:" the ascidian tube-like heart lacks chambers....The ascidian heart is formed after metamorphosis as a simple tube-like structure with a single-layered myoepithelium that is continuous with a single-layered pericar- dial wall. It lacks chambers and endocardium.... The innovation of the chambered heart was a key event in vertebrate evolution, because the chambered heart generates one-way blood flow with high pressure, a critical requirement for the efficient blood supply of large-body vertebrates... all extant vertebrates have hearts with two or more chambers (Moorman and Christoffels 2003)" DOI:10.1101/gad.1485706

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