Lateral aspect of the skull showing the epithelial lining of the EAM
Figure 6A. The hatched area denotes the notch created in the ventral floor of the osseous ear canal described in Fig 5. The epithelial tissue lining of the ear canal is shown as the green colored area.
Figure 6B. While grasping the freed edge, the epithelial "cuff" is elevated both rostrally and caudally (the epithelium is shown elevated partially on the caudal aspect) from the osseous ear canal beginning at the notched area. The ridge of bone separating the EAM from the stylomastoid foramen is now well exposed.