Despite appropriate measures, a neonate passes away from a combined ventricular septal defect and truncus arteriosus. Which of the following cell populations were most likely absent during early fetal cardiac development?
Ectodermal neural crest
Extra-embryonic mesoderm
Intra-embryonic mesoderm
Mantle layer neuroblasts
—
Cut-to-the-chase Answer (0:26):
—
HY USMLE Answer (2:06):
