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10 Cards in this Set
- Front
- Back
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Surfaces of tongue |
Dorsal : Divided by V shaped Terminal sulcus into B anterior 2/3 (oral part) w posterior 1/3 (pharyngeal part) At apex of V there is a pit represent site of foramen caecum Mucous membrane of anterior 2/3 is thick due to presence of papillae while in posterior 1/3 no papillae but there is lingual tonsils Inferior Surface or Ventral: It is related to floor of mouth and covered by mucosa and show : Lingual frenum Deep Lingual vein Fimbriated folds Two Sublingual folds Sublingual papillae |
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Muscles of tongue, Nerve Supply |
4 extrinsic : orignate outside tongue and inserted into tongue 4 intrinsic : Originate and inserted within tongue extrinsic: Genioglossus : One Single muscle > pulls tongue into Opp side Two muscles together : protrude tongue Hyoglossus : dperesses tongue Styloglossus : retraction of tongue Palatoglossus : elevation of back of tongue and approximate palatoglossal folds intrinsic: change shape of tongue Superior w inferior longitudinal Transverse Vertical Motor : all Muscles of tongue supplied by hypoglossal nerve xpt palatoglossal as it supplied by Facial Sensory : General >Vagus w glossopharyngeal w lingual branch of Mandibular Nerve Taste > Vagus w glossopharyngeal w chorda tympani of Facial Nerve |
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Lymphatic drainage |
Tip drains bilaterally into submental LN Margins w body drains unilaterally into submandibular > upp deep cervical LN Posterior 1/3 drains bilaterally into upp deep cervical ( jugulodigastric w jugul-omohyoid) |
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Muscles of Palate w action |
Tensor palati: °Open auditory tube to equalize air passage between middle ear w nose °tightens soft palate Levator Palati ° elevate soft Palate ° open auditory tube Palatoglossus ° pulls up root of tongue ° approximate palatoglossal arches to close the oropharyngeal ishmus during 1st stage of deglutition Palato-pharyngeus ° elevates pharynx w larynx to close inlet of larynx Musculus uvulae ° elevates uvula
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Nerve Supply w blood |
Motor :All supplied by vagus nerve xpt tensor Palati that supplied by Mandibular Nerve trunk Sensory : Soft Palate > ° General ; by lesser Palatine Nerve of Maxillary Nerve ° Taste : by Gt petrosal nerve of Facial Hard Palate > General > naso w Gt Palatine Branches Hard : Gt Palatine in Max artery Pterygoid plexus of veins Soft : Lt Palatine in Max artery Ascending Palatine of Facial Ascending pharyngeal artery of ECA |
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Muscles of PHARYNX, act, Nerve Supply |
Superior constrictor Middle constrictor Inferior constrictor Stylopharyngeus Palatopharyngeus Salpingopharyngeus
Superior w middle w thyropharyngeal part of inferior are propulsive muscles during swallowing as pull food down into esophagus Cricopharyngeal part of inferior is a Sphincter preventing suction of air into esophagus
All Muscles supplied by vagus xpt stylopharyngeus supplied by pharyngeal part of glossopharyngeal Nerve |
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Nerve Supply |
Motor All Muscles supplied by vagus xpt stylopharyngeus supplied by pharyngeal part of glossopharyngeal Nerve Sensory Nasopharynx by pharyngeal part of Max Nerve Oropharynx by glossopharyngeal Laryngopharynx by vagus Pharyngeal plexus : Lie in middle constrictor Pharyngeal branch in : Vagus > motor Glossopharyngeal > Sensory to oropharynx Superior cervical Sympathatic ganglion > vasomotor |
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Gaps |
1st Gap is sinus of morgagni, give passage to auditory tube, Ascending Palatine artery w tensor Palati muscle 2nd Gap between Superior w middle constrictor, give pass to glossopharyngeal w stylopharyngeus muscle 3rd Gap between middle w inferior constrictor, give pass to Superior laryngeal Nerve w vessels 4th Gap below inferior constrictor.. Give pass to recurrent laryngeal w inferior laryngeal Nerve w vessels |
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Lateral wall of nose |
Superior meatus : opens in it posterior ethmoidal sinuses Spheno - ethmoidal recess : opens in it sphenoidal air sinuses Middle meatus : Bulla ethmoidalis > opens in it middle ethmoidal sinuses Hiatus semi-lunaris > Frontal w Max air Sinuses w anterior ethmoidal sinuses Inferior meatus : Naso-Lacrimal duct |
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Max air sinus w Frontal air sinus Nerve w drains w infection |
Infraorbital Superior alveolar Supraorbital Opens into Hiatus semi-lunaris Its opening is nearer to roof than floor Opens into middle meatus in Hiatus semi-lunaris More common to be infected Less to be infected |
