Figure 7
Lateral view of embryos between CS 17 and CS 23 showing craniofacial morphogenesis. The dashed line indicates the reference axis (Z-axis) in Method-1 and the red line indicates the reference axis (X-axis) in Method-2. The arrow indicates the frontal side of the face defined in Method-2. The following anatomical landmarks are drawn: external ear (Ex), internal ear (int), eye (Ey), mouth (Mo), pituitary gland (Pg), and first cervical vertebra (C1). Magnification is identical in all stages. The frontal position defined by Method-2 rotated as stages proceed. Note that both external and internal ears were located at similar positions between Pg and C1 between CS 17 and 23