Cardiac Morphology Flashcards
1
Q
Clusters form PAIRED CARDIAC TUBES by
A
18 days of gestation
2
Q
Paired tubes fuse in the midline on the ventral surface of the embryo to form the PRIMITIVE HEART TUBE by
A
22 days
3
Q
Embryonic heart begins to CONTRACT and exhibit PHASES of CARDIAC CYCLE
A
20-22 days
4
Q
Heart tube begins to bend and ventrally and toward the right (looping)
A
22-24 days
5
Q
Septation of the VENTRICLES
A
25 days
6
Q
Septation of the ATRIA
A
30 days
7
Q
AV valve and semilunar valve formation is complete
A
3 mos
8
Q
Conotruncal abnormalities associated with failure of neural crest cells to migrate
A
Transposition of Great Vessels
Tetralogy of Fallot (TOF)
Persistent Truncus Arteriosus
9
Q
Derived from ENDOCARDIAL CUSHIONS OF OUTFLOW TRACT
A
Aortic
Pulmonary
10
Q
Derived from FUSED ENDOCARDIAL CUSHIONS OF THE AV CANAL
A
Mitral
Tricuspid
