Embryology Flashcards
Gives rise to ascending aorta and pulmonary trunk
Truncus arteriosus
Gives rise to smooth parts of left and right ventricles
Bulbus cordis
Gives rise to atrial septum, membranous interventricular septum; AV and semilunar valves
Endocardial cushions
Gives rise to the trabeculated part of left and right atria
Primitive atrium
Gives rise to trabeculated part of left and right ventricles
Primitive ventricles
Gives rise to the smooth part of left atrium
Primitive pulmonary vein
Gives rise to coronary sinus
Left horn of sinus venosus
Gives rise to smooth part of right atrium
Right horn of sinus venosus
Gives rise to superior vena cava
Right common cardinal vein and right anterior cardinal vein
First functional organ in vertebrae embryos
Heart
Gestational age heart begins to beat
4th week
Process that establishes left-right polarity of heart during 4th week of development
Cardiac looping
Primary ciliary dyskinesia
Kartagener syndrome
Protein involved in left-right polarity, when defective leads to dextrocardia
Dynein
Structures that fuse to form atrial septum
Septum primum and septum secundum
First septum to form in heart development
Septum primum
First foramen to form in heart development
Foramen secundum
Structure that maintains right-to-left shunt during heart development
Foramen secundum