Regional anatomy in its relation to medicine and surgery . transverse thyroid veins in the supra-sternal manubrium left facial artery and vein. 40. The left digastric muscle. The left submaxillary gland. The left hyoid artery. The thyro-hyoid membrane. The left thyro-hyoid muscle. The left internal carotid artery. The left superior laryngeal nerve. The left superior thyroid artery and vein. The crico-thyroid artery over the crico-thyroid mem-brane. The cricoid cartilage. The left internal jugular vein. The left omo-hyoid muscle crossing over the commoncarotid art
Regional anatomy in its relation to medicine and surgery . transverse thyroid veins in the supra-sternal manubrium left facial artery and vein. 40. The left digastric muscle. The left submaxillary gland. The left hyoid artery. The thyro-hyoid membrane. The left thyro-hyoid muscle. The left internal carotid artery. The left superior laryngeal nerve. The left superior thyroid artery and vein. The crico-thyroid artery over the crico-thyroid mem-brane. The cricoid cartilage. The left internal jugular vein. The left omo-hyoid muscle crossing over the commoncarotid artery. The left lobe of the thyroid body, drawn aside. The left sterno-mastoid muscle. The left external jugular vein. The trachea. The left recurrent laryngeal nerve. The left clavicular nerve. The supra-sternal notch. N. B.—The dissections represented in Plates 23 and 24 were made upon a thick, short-necked, well-developed malesubject, aged thirty-five years, to demonstrate the parts especially concerned in the operations of laryngotomy Q) r+fB -1^ THE REGION OF THE MOUTH. 169 At the under surface of the tongue the lingual nerve divides intonumerous branches (Plate 13, Fig. 2, No. 1), which ultimately are dis-tributed to the mucous membrane and the fungiform and filiform papillaeon the anterior three-fourths of the dorsum of the organ. It also suppliesthe neighboring mucous membrane of the mouth and gums and the lingualgland, and connects with the terminal branches of the hypoglossal nerve atthe apex of the tongue. In severe neuralgic affections of the tonguedivision of this nerve sometimes affords relief. It can readily be reachedby making an incision through the mucous membrane between the verticalramus of the jaw and the last molar tooth, or, if the mouth is too small,by an external incision through the cheek in the line of the oral commis-sure. In relation to the external pterygoid muscle the lingual nerve isjoined by the chorda tympani from the facial ne
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