Embryology Flashcards
what germ layer of the embryo forms the heart?
the visceral mesoderm
where is the visceral mesoderm located?
cranial to the developing neural tube
what is the neural plate?
where the brain begins to develop in an embryo
how does the heart reach its final position during development?
lateral and craniocaudal folding move it from a very cranial area to its correct location
what does lateral folding of the embryo form?
a single tube that will become the heart
what does the heart tube develop and what do these form?
five dilatations which develop into the adult heart structures
what are the five dilatations of the heart tube (from cranial to caudal)?
truncus arteriosus bulbus cordis ventricle atrium sinus venosus
what does the truncus arteriosus eventually form?
aorta
pulmonary trunk
what does the bulbus cordis eventually form?
trabeculated part of the RV
outflow of both ventricles
