Embryology — Flashcards

The umbilical _____ return deoxygenated blood from the fetus to the placenta

During which week of gestation does the primitive streak appear?_____

Which branchial arch gives rise to the muscles of facial expression? _____

A partially involuted thyroglossal duct may present as a _____ lobe on the thyroid

Which form of spina bifida is associated with herniation of meninges and neural tissue through the bony defect? _____

During which week of gestation is the trilaminar disc formed?_____

The embryonic _____ gives rise to the ureter, pelvises, calyces, and collecting ducts

_____ collecting system may occur due to two ureteric buds reaching and interacting with one metanephric mesenchyme

Which gene of embryogenesis is responsible for lengthening of limbs? _____

A _____ is a diverticulum due to a slight failure of the urachus to obliterate