. Anatomy, descriptive and applied. Anatomy. THE FIFTH, TRIGEMINAL, OR TRIFACIAL NERVE 985 enter the ganglion, constituting its sensor root. Its motor root is derived from tlie facial nerve through the large superficial petrosal nerve, and its sympathetic root from the carotid plexus, through the large deep petrosal nerve. These two nerves join together before their entrance into the ganglion to form a single nerve, the Vidian. The large or great superficial petrosal branch (h. petrosus superficialis major) (Fig. 744) is given off from tlie geniculate ganglion implanted on the external genu of
. Anatomy, descriptive and applied. Anatomy. THE FIFTH, TRIGEMINAL, OR TRIFACIAL NERVE 985 enter the ganglion, constituting its sensor root. Its motor root is derived from tlie facial nerve through the large superficial petrosal nerve, and its sympathetic root from the carotid plexus, through the large deep petrosal nerve. These two nerves join together before their entrance into the ganglion to form a single nerve, the Vidian. The large or great superficial petrosal branch (h. petrosus superficialis major) (Fig. 744) is given off from tlie geniculate ganglion implanted on the external genu of the facial nerve in the facial canal or aquaeductus Fallopii; it passes through the hiatus canalis facialis, enters the cranial cavity, and runs forward, being contained in a groove on the anterior surface of the petrous portion of the temporal bone, and lies beneath the dura. It then enters the cartilaginous substance which fills in the foramen lacerum medium, and, joining with the large deep petrosal nerve, forms the Vidian Fig. 740.—The sphenopalatine or Meckel's ganglion and its branches The large deep petrosal nerve (?i. pefrosus profundus) (Fig. 745) is given off from the carotid plexus of the sympathetic upon the internal carotid artery, and runs through the carotid canal on the outer side of the internal carotid artery. It then enters the cartilaginous substance which fills in the foramen lacerum medium, and joins with the large superficial petrosal nerve to form the Vidian. The Vidian nerve (;i. canalis pterygoidei) (Fig. 740), formed by the junction of the two preceding nerves in the cartilaginous substance which fills in the middle lacerated foramen, passes forward, through the Vidian canal, with the artery of the same name, and is joined by a small ascending nerve branch, the sphenoidal branch, from the otic ganglion. Finally, it enters the sphenomaxillary fossa, and joins the posterior angle of the sphenopalatine ganglion. Branches of Distribution of the
Size: 1811px × 1379px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectanatomy, bookyear1913
