Ebook Cunningham’s manual of practical anatomy (Vol III - 16/E): Part 2
➤ Gửi thông báo lỗi ⚠️ Báo cáo tài liệu vi phạmNội dung chi tiết: Ebook Cunningham’s manual of practical anatomy (Vol III - 16/E): Part 2
Ebook Cunningham’s manual of practical anatomy (Vol III - 16/E): Part 2
CHAPTER 18The tongueIntroductionThe longue is a mobile organ which bulges upwards from the floor of the mouth. Its posterior part forms the anterior w Ebook Cunningham’s manual of practical anatomy (Vol III - 16/E): Part 2wall of the oropharynx (see Figs. 17.2. 17.3], It is covered by stratified squamous epithelium and consists mainly of skeletal muscle, interspersed with a little fat and numerous glands.The tongue is separated from the teeth by a deep a I ve 010 li II g II a 1 sulcus This sulcus is filled by the pal Ebook Cunningham’s manual of practical anatomy (Vol III - 16/E): Part 2atoglossal fold, posterior to the last molar tooth. The sulcus partly undermines the lateral margins of the tongue and extends beneath its free anteriEbook Cunningham’s manual of practical anatomy (Vol III - 16/E): Part 2
or third. The smooth mucous membrane in the alveololingual sulcus passes from the root of the tongue across the floor of the mouth to the internal aspCHAPTER 18The tongueIntroductionThe longue is a mobile organ which bulges upwards from the floor of the mouth. Its posterior part forms the anterior w Ebook Cunningham’s manual of practical anatomy (Vol III - 16/E): Part 2 connect the tongue to the hyoid bone and mandible, and transmits the nerves and vessels which supply it (see Fig. 17.1],Dorsum of the tongueThe dorsum of the tongue extends from the tip of the tongue to the anterior surface of the epiglottis. It is arbitrarily divided into an anterior palatine part Ebook Cunningham’s manual of practical anatomy (Vol III - 16/E): Part 2 and a posterior pharyngeal part by a V-shaped sulcus—the sulcus tei 111 111 al is. The apex of the sulcus terminalis points posteriorly and is markedEbook Cunningham’s manual of practical anatomy (Vol III - 16/E): Part 2
by a pit—the foramen caecum. A shallow mediangroove extends from the tip of the tongue to the foramen caecum [Fig. 18.1].The thick mucous membrane ofCHAPTER 18The tongueIntroductionThe longue is a mobile organ which bulges upwards from the floor of the mouth. Its posterior part forms the anterior w Ebook Cunningham’s manual of practical anatomy (Vol III - 16/E): Part 2nce, due to the presence of the underlying lymphoid follicles— the lingual tonsil. Posteriorly, the lingual mucous membrane is continuous with that on the anterior surface of the epiglottis over the median and lateral glosso-epiglottic folds and the valleculae of the epiglottis [Fig. 18.1].Lingual p Ebook Cunningham’s manual of practical anatomy (Vol III - 16/E): Part 2apillaeThere are three types of lingual papillae—circumvallate papillae, fungiform papillae, and filiform papillae. The largest of these are the 7-12Ebook Cunningham’s manual of practical anatomy (Vol III - 16/E): Part 2
circumvallate papillae, which lie immediately anterior to the sulcus terminalis. Each has the shape of a short cylinder, sunk into the surface of the CHAPTER 18The tongueIntroductionThe longue is a mobile organ which bulges upwards from the floor of the mouth. Its posterior part forms the anterior w Ebook Cunningham’s manual of practical anatomy (Vol III - 16/E): Part 2than circumvallate papillae. They are seen as bright red spots principally on the tip and margins of the living tongue, but also scattered over the remainder of the dorsum. Each fungiform papilla is attached by a narrow base and expands into a rounded, knob-like flee extremity. Most of them carry ta Ebook Cunningham’s manual of practical anatomy (Vol III - 16/E): Part 2ste buds.Filiform papillae are numerous minute, pointed projections which cover all of the palatine pan of the dorsum and the margins of the tongue. TEbook Cunningham’s manual of practical anatomy (Vol III - 16/E): Part 2
hey are in rows parallel to the sulcus terminal!? posteriorly, but transverse anteriorly.221The tongue222Fig. 18.1 The dorsum of the tcogue, epiglottiCHAPTER 18The tongueIntroductionThe longue is a mobile organ which bulges upwards from the floor of the mouth. Its posterior part forms the anterior w Ebook Cunningham’s manual of practical anatomy (Vol III - 16/E): Part 2cous membrane—the foliate papillae.is the rounded sublingual fold (which contains the sublingual gland and the submandibular duct) and has the openings of the ducts of the sublingual gland [see Fig. 17.1].Inferior surface of the tongueMuscles of the tongueThe inferior surface and sides of the tongue Ebook Cunningham’s manual of practical anatomy (Vol III - 16/E): Part 2 are covered by smooth, thin mucous membrane. In the midline, anteriorly the mucosa is raised into a sharp fold which joins the inferior surface of thEbook Cunningham’s manual of practical anatomy (Vol III - 16/E): Part 2
e tongue to the floor of the mouth. This is the fren ulum of the tongue [see Fig. 17.1], On the tongue, on each side of the frenulum is the deep linguCHAPTER 18The tongueIntroductionThe longue is a mobile organ which bulges upwards from the floor of the mouth. Its posterior part forms the anterior w Ebook Cunningham’s manual of practical anatomy (Vol III - 16/E): Part 2rane. On each side of the frenulum, on the floor of the mouth, is the sublingual papilla, with the opening of the submandibular duct on it. Passing posterolaterally from the sublingual papillaThe tongue is divided into two halves by a median fibrous septum. The muscles of each half consist of an ext Ebook Cunningham’s manual of practical anatomy (Vol III - 16/E): Part 2rinsic and an intrinsic group. The extrinsic muscles take origin from parts outside the tongue and can move the tongue and change its shape. The intriEbook Cunningham’s manual of practical anatomy (Vol III - 16/E): Part 2
nsic muscles are solely inside the longue and can only change its shapeThe extrinsic muscles of the tongue are the genio-glossus. hyoglosssus. styloglCHAPTER 18The tongueIntroductionThe longue is a mobile organ which bulges upwards from the floor of the mouth. Its posterior part forms the anterior w Ebook Cunningham’s manual of practical anatomy (Vol III - 16/E): Part 2se muscles.Using the instructions given in Dissection 18.1. trace the extrinsic muscles of the tongue.DISSECTION 18.1 Extrinsic muscles of the tongueObjectiveI. To identify and trace the extrinsic muscles of the tongue.Instructions1. On the cut surface of the tongue, identify the genioglossus and ge Ebook Cunningham’s manual of practical anatomy (Vol III - 16/E): Part 2niohyoid. Confirm their attachments and position [Fig. 17.3].2On the right side, separate the buccinator, pterygomandibular raphe, and superior constrEbook Cunningham’s manual of practical anatomy (Vol III - 16/E): Part 2
ictor from their attachments to the mandible, and turn the remainder of the body of the mandible downwards to expose the lateral surface of the tongueCHAPTER 18The tongueIntroductionThe longue is a mobile organ which bulges upwards from the floor of the mouth. Its posterior part forms the anterior w Ebook Cunningham’s manual of practical anatomy (Vol III - 16/E): Part 2and follow the extrinsic muscles into Its substance.Extrinsic muscles of the tongueThe extrinsic muscles of the tongue have been described in C hapters 16 and 17 [Fig. 18.2],Fig. 18.2 The extrinsic muscles of the tongue.Movements of the tongue Ebook Cunningham’s manual of practical anatomy (Vol III - 16/E): Part 2CHAPTER 18The tongueIntroductionThe longue is a mobile organ which bulges upwards from the floor of the mouth. Its posterior part forms the anterior wGọi ngay
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