cranial flexure n.
See cephalic flexure.
The growth of the front part of the head has considerably diminished the prominence of the cranial flexure.
In both of these, and especially in the second, an apparent diminution of the cranial flexure is very marked.
Beyond the mid-brain is placed the fore-brain, whose growth is rapidly rendering the cranial flexure imperceptible.
The head is remarkable for the small apparent amount of the cranial flexure.
The cranial flexure soon becomes very marked, the mid-brain forming the end of the long axis of the embryo (fig. 146).
The cranial flexure is as pronounced as usual, and the cerebral region has now fully the normal size.
The epiblast in the angle formed by the cranial flexure becomes involuted to form the cavity of the mouth.
The cranial flexure and the form of the head in vertebrate embryos.
Great changes have been effected in the head, resulting in a diminution of the cranial flexure.
During stage L an apparent rectification of the cranial flexure commences, and is completed by stage Q.