. An elementary course of practical zoology. Zoology. CEREBRAL NERVES 165 The seventh or facial nerve (Figs. 49 and 53, VII) arises just behind the fifth and soon joins the Gasserian ganglion. Both it and the sixth leave the skull by the same aperture ZfPjsp'^sp Fig. 53-—Dissection of the head and anterior part of the body of the frog from the 4eft side, to show the distrihution of the fifth, seventh, ninth and tenth cerebral nerves, as well as of the hypoglossal and part of the sympathetic. ^(7. systemic arch ; brachial plexus ; D, Ao. dorsal aorta; t/w. duodenum ; H. hear
. An elementary course of practical zoology. Zoology. CEREBRAL NERVES 165 The seventh or facial nerve (Figs. 49 and 53, VII) arises just behind the fifth and soon joins the Gasserian ganglion. Both it and the sixth leave the skull by the same aperture ZfPjsp'^sp Fig. 53-—Dissection of the head and anterior part of the body of the frog from the 4eft side, to show the distrihution of the fifth, seventh, ninth and tenth cerebral nerves, as well as of the hypoglossal and part of the sympathetic. ^(7. systemic arch ; brachial plexus ; D, Ao. dorsal aorta; t/w. duodenum ; H. heart; Hy. body of hyoid ; Hy^. anterior, and Hy"^. posterior horns of hyoid ; L. lung; N. olfactory sac ; On. orbit; Pul. pulmonary artery ; Sp. A. splanchnic artery; St. stomach ; Sy. sympathetic ; //. cut end of optic nerve ; V^. ophthal- mic, V^. maxillary, and V^. mandibular branch of trigeminal; VII^. palatine, and K//2. hyomandibular branch of facial; IJC. glossopharyngeal; X. vagus ; Xcd. cardiac, Xgas. gastric, Xlar. laryngeal, and XpuL pulmonary branch of vagus ; / sp. Srst spinal nerve (hypoglossal); 2sp.—^sp. second to fifth spinal nerves. (After Howes, slightly modified). as the fifth. It divides into two branches, one of which, the palatine (Fig. 53, VII^) supplies the mucous membrane of the roof of the mouth, and the other, or hyomandibular {VII^) sends a branch to the skin and muscles of the. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Parker, T. Jeffery (Thomas Jeffery), 1850-1897; Parker, William Newton, joint author. London, Macmillan and Co. , Limited; New York, The Macmillan Company
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