Lab 20 - Image 19

Skeletal vascular cast. 1, common carotid a.; 2, internal carotid a.; 3, external carotid a.; 4, linguofacial a.; 5, stylohyoid bone; 6, temporohyoid joint; 7, masseteric a.; 8, inferior alveolar a.; 9, facial a.; 10, inferior labial a.; 11, infraorbital artery. Please compare this image with 20-9. In both cases the external carotid a. passes lateral to the stylohyoid bone and the internal carotid a. passes medial to the stylohyoid bone.