Embryology and Development — Flashcards

During the _____ period of lung development, airways increase in diameter

The ear ossicles undergo _____ ossification which completes by 25th week of gestation

Hint: membranous/enchondral

The _____ is a remnant of the obliterated urachus

In _____ ossification, a hyaline cartilage model is first made by chondrocytes.

Male _____ cells are the homolog of female theca cells

Congenital _____ cysts are caused by abnormal budding of the foregut and dilation of terminal or large bronchi

Development of notochord:The cells in the primitive knot multiply and pass _____ in the midline between the ectoderm and endoderm, forming the notochordal process

Hint: cranial/caudal

Development in the extremities proceeds from _____ to distal (proximal/distal)

The neuropores facilitate communication between the _____ and the amniotic cavity.

The _____ and 4th branchial arches form the posterior one-third of the tongue