Applied anatomy and oral surgery for dental students . themhave bony insertions, and some of them have no bonyorigin. The oral group consists of the orbicularis orisand those muscles that are inserted into it. The orbicularis oris forms the sphincter of the is elliptic, and its fibers interlace with those of theother muscles of expression. The remaining musclesare inserted into the orbicularis oris, and are as follows,beginning at the median line above: Levator labii superioris alcequc nasi, arises from theupper and outer part of the nasal process of the maxilla. Levator labii superio
Applied anatomy and oral surgery for dental students . themhave bony insertions, and some of them have no bonyorigin. The oral group consists of the orbicularis orisand those muscles that are inserted into it. The orbicularis oris forms the sphincter of the is elliptic, and its fibers interlace with those of theother muscles of expression. The remaining musclesare inserted into the orbicularis oris, and are as follows,beginning at the median line above: Levator labii superioris alcequc nasi, arises from theupper and outer part of the nasal process of the maxilla. Levator labii superioris, arises from the maxilla im-mediately below the orbit. The depressor labii superioris arises from the incisorfossa of the maxilla. The zygomaticus minor arises from the lower surfaceof the malar bone. 6o APPLIED ANATOMY The zygomaticus major is just behind the zygomaticusminor, arising from the lower edge of the malar bone,near the zygomatic suture. The levator anguli oris arises from the canine fossa,immediately below the infra-orbital Fig. 17.—Muscles of the right side of the head and neck (American Illus-Iraled Medical Dictionary): i. Frontalis; 2, superior auricular; 3, posterior auric-ular; 4, orbicularis palpebrarum; 5, pyramidalis nasi; 6, compressor naris; 7,levator labii superioris alaeque nasi; 8, levator labii superioris; g, zygomaticusmajor; 10, orbicularis oris; 11, depressor labii inferioris; 12, depressor angulioris; 13, anterior belly of digastric; 14, mylohyoid; 15, hyoglossus; 16, stylo-hyoid; 17, posterior belly of digastric; 18, the masseter; 19, sternohyoid; 20,anterior belly of omohyoid; 21, thyrohyoid; 22, 23, lower and middle constric-tors of pharynx; 24, sternomastoid; 25, 26, splenius; 27, levator scapula;; 28,anterior scalenus; 29. posterior belly of omohyoid; 30, middle and posteriorscalenus; 31, trapezius. The risorius muscle arises from the deep fascia cover-ing the masseter muscle. It is not always present. The depressor anguli ori
Size: 1307px × 1912px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthoriv, bookcentury1900, bookdecade1910, booksubjectanatomy
