Figure 6

Movement of external and internal ear and anatomical landmarks during development in orthogonal coordinate defined in Method-2. Frontal (A) and left lateral (B) aspects of the face. Line connecting the middle point of the bilateral lens vesicle (Eys) and pituitary gland (Pg) was defined as reference axis (X-axis). The vertical line to the X-axis, which contained Stomodium (Mo) was defined as Z-axis of 3D orthogonal coordinate. The relative position of anatomical landmarks including Ex1, Ex6 and Int is compared with the distance between XY plane and Mo at each CS. (C) Movement of anatomical landmarks along the cranial/caudal (Z)-axis in the orthogonal coordinate in Method-2