Perforating (Sharpey's) fibers of the periodontal ligament and bone.
D000539:Alveolar Process / Q000033:anatomy & histology*; D000818:Animals; D003238:Connective Tissue / Q000033:anatomy & histology*; D006224:Cricetinae; D005152:Facial Muscles / Q000033:anatomy & histology*; D008022:Ligaments / Q000033:anatomy & histology*; D051379:Mice; D010519:Periodontium / Q000033:anatomy & histology*