Phenotype: heart primordium decreased size, abnormal
Note: This statement combines anatomy and/or ontology terms with phenotype quality terms to create a complete phenotype (EQ) statement. For detailed information on individual terms, click the hyperlinked term name.
Name: heart primordium
Synonyms: cardiac field, heart primordia
Definition: Bilateral groups of cells consisting of three rows: one row of endocardial precursors medially and two rows of myocardial precursors laterally. The two populations fuse at the midline between 21 and 26 somites to form the heart rudiment or cone.
Ontology: Anatomy Ontology [ZFA:0000028]
Name: decreased size
Synonyms: hypoplasia, small, tiny, underdeveloped
Definition: A size quality which is relatively low.
Ontology: Phenotypic Quality Ontology [PATO:0000587]