. Local and regional anesthesia : with chapters on spinal, epidural, paravertebral, and parasacral analgesia, and on other applications of local and regional anesthesia to the surgery of the eye, ear, nose and throat, and to dental practice. ar processes of the maxilla on the innerside, behind or along the side of the last molar. Distantia interalveolaris interna (D. A. I.). The axis in which he the foramina rotundum reaches the surfaceat the upper border of the zygomas at the point where the temporal THE HEAD, SCALP, CRANIUM, BRAIN, AND FACE 565 portion merges with the molar; this is about th
. Local and regional anesthesia : with chapters on spinal, epidural, paravertebral, and parasacral analgesia, and on other applications of local and regional anesthesia to the surgery of the eye, ear, nose and throat, and to dental practice. ar processes of the maxilla on the innerside, behind or along the side of the last molar. Distantia interalveolaris interna (D. A. I.). The axis in which he the foramina rotundum reaches the surfaceat the upper border of the zygomas at the point where the temporal THE HEAD, SCALP, CRANIUM, BRAIN, AND FACE 565 portion merges with the molar; this is about the midpoint of the zygo-matic arch, the linea interzygomatica. The foramina rotunda lie about 2 to 4 mm. just above and behindthis line. The axis in which he the foramina ovale passes over theeminentia articularis and through the articular tubercles; occasionallythe foramen hes 2 or 3 mm. back of this line, but as the axis of thenerve is downward and forward it usually passes through this the relative position and distances between these parts may varyslightly in different skulls, as well as on the two sides of the same skull,these measurements may be relied on as approximately correct, varyingonly within a few Fig. 225.—Method of using Offerhaus calipers. (Braun.) In the clinical application of this method the distantia interalveolarisexterna is measured with an ordinary pair of calipers or a compass; thisis usually found to be about 5 cm., and equals (D. F 0.) distantiaforamina ovalis; the distantia intertubercularis is next determinedby specially constructed calipers (Fig. 225), though any instrumentadapted to this purpose will do. On the Offerhaus calipers there isa movable part, which is attached to the point and projects outwardto indicate the direct angle of puncture. These are usually placedon after the distance has been determined, which is shown by a scaleto which the arms of the caliper are attached and along which theymove. As the articular
Size: 1501px × 1664px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectanesthe, bookyear1914
