Surgical therapeutics and operative technique . Fig. 258.^—Anatomy of the Median Suprahtoid Eegion. The tongue is drawia downwards. The tumour is exposed. The epiglottis is seen in the Fig. 259.—PartialJExtiepation of the Tongue by the Suprahyoid Koute: Fourth Stage. Dissection of tumour. OPERATIONS ON THE HEAD 147 Operation through the Median Suprahyoid Route — Anatomy of theRegion—First Plane.—An incision made parallel to the lower border oithe inferior maxilla, and extending from one angle of the jaw to the other,exposes, on division of the platysma, the mylohyoid muscle, on whic
Surgical therapeutics and operative technique . Fig. 258.^—Anatomy of the Median Suprahtoid Eegion. The tongue is drawia downwards. The tumour is exposed. The epiglottis is seen in the Fig. 259.—PartialJExtiepation of the Tongue by the Suprahyoid Koute: Fourth Stage. Dissection of tumour. OPERATIONS ON THE HEAD 147 Operation through the Median Suprahyoid Route — Anatomy of theRegion—First Plane.—An incision made parallel to the lower border oithe inferior maxilla, and extending from one angle of the jaw to the other,exposes, on division of the platysma, the mylohyoid muscle, on which arefound the anterior bellies of the digastric muscles as they approach themiddle line. In Fig. 254 we recognize two median suprahyoid lymphaticglands, and at the side the superficial suprahyoid glands which arein relation with the trunk and branches of the submental artery. We alsorecognize, at the margins of the incision, the anterior pole of eithersubmaxillary gland, exposed by incision of the superficial cervicalaponeurosis. Second Plane.—When we divide, as shown in Fig. 255, the anterior bellyof each digastric muscle and the mylohyoid, and draw them backwards,we open the
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