Figure 5: Location of the hypoglossal canal in relation to occipital condyle (OC). (a) Location 1 (anterior 1/3^rd). (b) Location 2 (middle 1/3^rd). (c) Location 3 (posterior 1/3rd). 5a: Extra-cranial hypoglossal canal related to anterior 1/3^rd of OC. 5b: Intra-cranial hypoglossal canal related to middle 1/3^rd of occipital condyle