. Cunningham's Text-book of anatomy. Anatomy. 1384 SUKFACE AND SUEGICAL ANATOMY. be felt from the outside. Each tonsil is covered on its free surface by mucous membrane upon which are seen the orifices of the tonsillar crypts; the lateral or deep surface is covered by a layer of fibrous tissue which forms an imperfect capsule to the organ. According to Merkel, the internal carotid artery is situated 1*5 cm. behind the lateral margin of the tonsil, which is separated from the superior constrictor by a quantity of loose cellular tissue and fat, so that the gland can be grasped with a volsellum a
. Cunningham's Text-book of anatomy. Anatomy. 1384 SUKFACE AND SUEGICAL ANATOMY. be felt from the outside. Each tonsil is covered on its free surface by mucous membrane upon which are seen the orifices of the tonsillar crypts; the lateral or deep surface is covered by a layer of fibrous tissue which forms an imperfect capsule to the organ. According to Merkel, the internal carotid artery is situated 1*5 cm. behind the lateral margin of the tonsil, which is separated from the superior constrictor by a quantity of loose cellular tissue and fat, so that the gland can be grasped with a volsellum and pulled forward without dragging the vessel with it. The tonsil receives its Mood-supply mainly from a small vessel derived from the anterior palatine artery; when this branch is larger than usual and adherent to Hypoglossal nerve Internal jugular vein | Internal carotid artery Accessory nerve Digastric muscle Vagus nerve | Sympathetic Ascending pharyngeal artery Dens Stylo-hyoid Glosso- p~4 pharyngeal nerve ^-If Parotid gland Temporo- maxillary vein External carotid artery Styloglossus Ascending palatine artery Internal pterygoid Epiglottis Frenulum epiglottitis Pharyngeal portion of tongue. Post-pharyngeal lymph gland Superior constrictor muscle Pharyngo-palatine arch Tonsil Pharyngo-epiglottic fold Glosso-palatine arch Vallate papillae fj Raphe of tongue Conical papillae Fungiform papilla Buccinator Fungiform papilla Fig. 1085.—Horizontal Section through Mouth and Pharynx at the Level of the Tonsils. The stylopharyngeus, which is shown immediately to the inner side of the external carotid artery, and the prevertebral muscles, are not indicated by reference lines (from Birmingham). the capsule of the tonsil the bleeding which attends the operation of removal of the tonsils may be considerable. The haemorrhage can be arrested by pressing the bleeding point outwards against the internal pterygoid and the ramus of the jaw. If the bleeding be from a spurting vessel of larger
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectanatomy, bookyear1914
