A cone-like structure that is formed when myocardial progenitor cells of the heart field fuse at the midline. The heart rudiment is the first structure of the heart tube.

The migrating myocardial precursors of the heart rudiment form a cone like structure between 19.5hpf and 22hpf, and eventually telescope out into the primitive heart tube at 24hpf. Stainier 2001.[TAO]

rudimentary heart, heart cone

uberon

UBERON:0004291

http://purl.obolibrary.org/obo/uberon.owl, http://purl.obolibrary.org/obo/cl.owl

• primitive heart tube