Assertion: mandible's surface | /r/HasProperty | . 177
Facets:
Source sentences:
text: The internal surface (Fig. 177) is concave from side to side.
text: Surfaces.The external surface (Fig. 176) is marked in the median line by a faint ridge, indicating the symphysis or line of junction of the two pieces of which the bone is composed at an early period of life.
text: The medial surface (Fig. 177) presents about its center the oblique mandibular foramen, for the entrance of the inferior alveolar vessels and nerve.