Flashcards in Embryology Deck (17)
Which germ layer forms the heart?
Name the 5 parts of the heart tube, from cranial to caudal end (the baby verily acquires stuff...)
What does the truncus arteriosus of the heart tube produce?
What does the bulbus cordis of the heart tube produce?
Outflow of both ventricles
What does the ventricle of the heart tube produce?
What does the atrium of the heart tube produce?
Right and left atria
What does the sinus venosus of the heart tube produce?
Which 3 vessels enter the right + left horns of the sinus venosus?
What does the vitelline vein drain?
What does the umbilical vein drain?
What do the cardinal veins act as precursors for?
The systemic venous system
Remnants of the left horn of the sinus venosus give rise to the coronary sinus. True/False?
What is the function of the ductus venosus?
Directs O2-rich blood from placenta (umbilical vein) to IVC, bypassing the liver
What is the function of the foramen ovale?
Directs O2-rich blood from RA to LA so it goes to brain and not lungs
What is the function of the ductus arteriosus?
Directs deoxygenated blood from pulmonary artery to descending aorta so it goes to placenta to get O2
What is the remnant of the umbilical vein in adults?