A manual of anatomy . s (tubera mentalia). The sockets of thefront teeth project somewhat. At each side of the symphysis is theincisor fossa and in fine with the second premolar tooth is the mentalforamen, for the mental nerve and vessels. The oblique line {lineaobliqna) extends upward and backward from the mental medial surface is convex from above downward and concave 66 OSTEOLOGY from side to side. Upon each side of the median line are the mentalspines {spina mentales) the upper giving attachment to the and the lower to the geniohyoideus. Above the spineis a nut
A manual of anatomy . s (tubera mentalia). The sockets of thefront teeth project somewhat. At each side of the symphysis is theincisor fossa and in fine with the second premolar tooth is the mentalforamen, for the mental nerve and vessels. The oblique line {lineaobliqna) extends upward and backward from the mental medial surface is convex from above downward and concave 66 OSTEOLOGY from side to side. Upon each side of the median line are the mentalspines {spina mentales) the upper giving attachment to the and the lower to the geniohyoideus. Above the spineis a nutrient foramen. Below and to the side is the aigastric fossa(fossa digastrica) for the attachment of the anterior belly of the This surface is traversed and divided by an obliqueline below and in front over the digastric fossa. This is the mylo-hyoid line (linea mylohyoidea) to which the mm. mylohyoideus andconstrictor pharyngeus superior are attached. The bone below this Coronoid process Alveolar border. Nolch of the mandible Pterygoid depression Head of condyloid process Body / Ramus Angle (masseteric tuberosity} Mental foramen Fig. 45.—The mandible seen from the lateral surface. {Sobotta and McMurrich.) line is hollow (fossa submaxillaris) for the submaxillary gland and infront is another hollow area the fossa sublingualis. The superior, or alveolar margin, supports the lower teeth. Theinferior margin (basis mandibulm) is thicker than at the junction ofthe alveolar margin and the body. This margin is longer than thesuperior, rounded and grooved near the junction with the ramus forthe external maxillary artery. The rami (rami mandibulse) are flat and nearly vertical in direc-tion. The lateral surface of each is smooth but uneven due to ridgesfor muscle attachment (masseter). The medial surface is smoothand irregular. Near the middle is the foramen mandibtilare thatleads into the inferior alveolar canal (for the vessels and nerves of thesame name). The shelf of
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Keywords: ., bookcentury1900, bookdecade1910, booksubjecthumananatomy, bookyea
