Lecture 3 Tongue - PDF

Tongue = Gloss Anything related to the tongue known Lingual Lingual nerve Lingual surface Tongue is a muscular organ occupying the floor of the mouth. Functions 1-It manipulates food for mastication. 2- It is the primary organ of taste, as papillae and tas...

Tongue = Gloss Anything related to the tongue known Lingual Lingual nerve Lingual surface Tongue is a muscular organ occupying the floor of the mouth. Functions 1-It manipulates food for mastication. 2- It is the primary organ of taste, as papillae and taste buds cover much of the dorsal surface of the tongue. 3- It serves as a natural means of cleaning the teeth. 4- A secondary function of the tongue is phonetic articulation Taste Bud  Taste map distribution Muscules of the Tongue The 4 intrinsic muscles act to change the shape of the The tongue has 8 muscles, tongue and are not classified as either attached to any bone. intrinsic or extrinsic. The 4 extrinsic muscles act to change the position of the tongue and are anchored to bone. Muscles of the Tongue Extrinsic muscles Hyoglossus Genioglossus Palatoglossus Styloglossus  Intrinsic muscles Superior longitudinal Muscles of the Tongue Inferior longitudinal Verticalis Transversus  Some related terminology Macroglossia A condition of an enlarged tongue  MICROGLOSSIA A condition of small tongue  GLOSSITIS An area of redness and loss of lingual Papillae (Tongue inflammation) AGLOSSIA A rare condition in which the tongue is congenitally absent Tongue tie (Ankyloglossia) is when a band of tissue (lingual frenum) connects the tongue’s underside to the mouth’s floor, which keeps it from moving freely. A physiological elimination of deciduous teeth at specific ages due to physiologic resorption is: A- Active Eruption B- Passive eruption C- Shedding D- surgical extraction  The Corner of the mouth where the two lips meet is called …………………………………… The anterior part of the Palate that rests on the bone is called …………… While The posterior part is called………………..which ends with a small structure named ……………… The tissue that surrounds the cervical part of teeth…. The 2 bilateral bulges located beneath the tongue are………… The Upper Arch is called the………………………. the teeth in this arch are known…………………………….. -The lower arch is known………………………………. The teeth in this arch are called …………………………………… When describing the Macro anatomy of the tooth, we mention………………..,……………………&……………………… How many dentition periods are there in humans? How many dentitions are in the human? Tooth movement in an axial direction from its location within the jaw into a functional position in the oral cavity A- Shedding B- Passive eruption C-surgical extraction D- Active Eruption  Mention the Scientific term Part of the pulp located in the crown of the tooth The fibrous ligament that attaches the tooth to the alveolar bone. junction of 3 adjacent surfaces The end of the root canal Part of the pulp located in the root of the tooth Exposure of more tooth structure in the oral cavity due to apical recession of gingival tissue. The amount of tooth that visible in the oral cavity. Patient came to your clinic, by examination of his oral cavity clinically and radiographically you found that he has missing mandibular third molar, this tooth is known as: Decayed tooth Restored tooth Impacted tooth Congenitally missing tooth  Put true or false Destruction of tooth structure caused by toxins produced by bacteria is known as extraction Study and treatment of diseases of the gums is oral pathology specialty. Diagnosis, prevention, and correction of malocclusion is included in orthodontic specialty. Diagnosis and management of diseases of the teeth and restoring the dentition to the functional and esthetic requirements is Oral pathology Oral medicine Diagnosis and radiology Operative dentistry