IE users: please get the latest browser version at Microsoft Internet Explorer Home Page
if yot already have the latest browser version please verify that your browser settings is not in compatibility mode
Prechondrocytes are neural crest-derived cells destined for the anterior cranial base. The cells leave the lateral edges of the neural folds during cranial neurulation, which begins at E8.5. They migrate over the forebrain and around the eyes to form the frontonasal process, a boundary over the rostral diencephalon just caudal to the eyes. Between E11 and E14, these cells chondrify to form the trabecular, paranasal, frontal, orbital, hypophyseal, and pterygoid cartilages.