A system of human anatomy, general and special . scles of the tongue. 1. A portion of the temporalbone of the left side of the skull, including the styloid and mastoid processes, and themeatus auditorius extcrnus. 2, 2. The right side of the lower jaw, divided at its sym-physis; the left side having been removed. 3. The tongue. 4. The genio-hyoideusmuscle. 5. The genio-hyo-glossus. 6. The hyo-glossus muscle its basio-glossus Its cerato-glossus portion. 8. The anterior fibres of the lingualis issuing from betweenthe ;rlossus and genio-hyo-glossus. 9. The stylo-glossus muscle,
A system of human anatomy, general and special . scles of the tongue. 1. A portion of the temporalbone of the left side of the skull, including the styloid and mastoid processes, and themeatus auditorius extcrnus. 2, 2. The right side of the lower jaw, divided at its sym-physis; the left side having been removed. 3. The tongue. 4. The genio-hyoideusmuscle. 5. The genio-hyo-glossus. 6. The hyo-glossus muscle its basio-glossus Its cerato-glossus portion. 8. The anterior fibres of the lingualis issuing from betweenthe ;rlossus and genio-hyo-glossus. 9. The stylo-glossus muscle, with a small portionof the stylo-maxillary ligament. 10. The stylo-hyoid. 11. The stylo pharyngeus The OB hyoides. 13. The thyro-hyoidean membrane. 14. The thyroid cartilage. thyrohyoideus muscle arising from the oblique line on the thyroid cartilage. cricoid cartilage. 17. The membrane, through which the operationof larvngotoiny is performed. 18. The trachea. 19. The commencement of the oeso-phagus. 18. 20G MUSCLES OF THE PHARYNX. the mucous membrane of the floor of the tongue. By its internal sur-face with the tonsil, the superior constrictor muscle of the pharynx,and the hyo-glossus muscle. The Palato-glossus passes between the soft palate, and the sideof the base of the tongue, forming a projection of the mucous mem-brane, which is called the anterior pillar of the soft palate. Its fibresare lost superiorly among the muscular fibres of the palato-pharyngeus,and inferiorly among the fibres of the stylo-glossus upon the side ofthe tongue. This muscle with its fellow constitutes the constrictoristhmi faucium. Actions.—The genio-hyo-glossus muscle effects several movementsof the tongue, as might be expected from its extent. When the tongueis steadied and pointed by the other muscles, the posterior fibres ofthe genio-hyo-glossus would dart it from the mouth, while its anteriorfibres would restore it to its original position. The whole
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Keywords: ., bookcentury1800, bookdecade1840, booksubjectanatomy, bookyear1847
