Embryology and Development — Flashcards

At the age of nine, we generally have _____ permanent and 12 temporary teeth.

The _____embryonic mesoderm of the connecting stalk develops into a gelatinous substance known as Whartons jelly.

_____ represents the attachment of notochord to the pharyngeal endoderm during embryonic life

The organ of _____, also known as epoophoron, is a remnant of the mesonephric tubule in females.

_____ defects occur due to failure of rostral fold closure of the anterior abdominal wall

Renal agenesis occurs due to failure of the _____ to develop and induce differentiation of metanephric mesenchyme

_____ and omphalocele occur due to failure of lateral fold closure of the anterior abdominal wall

In the first step of atrial partitioning, the _____ grows toward the endocardial cushions, forming a narrow ostium primum

During normal development, _____ epithelium from the lower 2/3 of the vagina grows upward to replace columnar epithelium lining the upper 1/3 of the vagina

The left and right hemispheres usually separate during weeks _____ - 6 of development