Nose & Mouth OUTLINE. Nose. - Nasal Cavity & Its Walls. - Paranasal Sinuses. - Neurovascular Structures. Mouth. - Oral Cavity & Its Contents

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1 Dept. of Human Anatomy, Si Chuan University Zhou hongying Nose & Mouth OUTLINE Nose - Nasal Cavity & Its Walls - Paranasal Sinuses - Neurovascular Structures Mouth - Oral Cavity & Its Contents - Salivary Glands - Neurovascular Structures

2 Overview of the Nose external nose septum nasal cavity Relations of the Nasal Cavity

3 The Skeletone of Chonanae

4 Anterior & Posterior Rhinoscopy

5 External Nose Surface Features

6 Nasal Cartilages septal nasal cartilage major & minor alar cartilage accessory nasal cartilage Apex

7 Floor Walls of the Nasal Cavity Roof

8 ethmoid bone & nasal cavity cribriform plate labyrinth ethmoid cells perpendicular plate superior concha middle concha uncinate

9 ethmoid bone & nasal cavity

10 The Nasal Septum perpendicular plate of ethmoid bone vomer septal cartilage nasal crest (maxilla & palatine) mucosa

11 The Lateral Wall of Nasal Cavity Bony Elements ethmoidal labyrinth perpendicular plate of palatine bone medial pterygoid plate medial surfaces of the maxilla & lacrimal bone inferior concha

12 Nasal Vestibular & Nasal Cavity Proper sphenoethmoidal recess superior conchas & meatus middle conchas & meatus inferior conchas & meatus

13 Superior, Middle & Inferior meati Medial Wall Overview of the Nasal Cavity Lateral Wall

14 Paranasal Sinuses frontal sinus sphenoid sinus maxillary sinus ethmoid air cells (anterior, middle & posterior)

15 The Paranasal Sinuses

16 Openings of Paranasal Sinuses frontal sinus middle meatus sphenoidal sinus sphenoethmoidal recess maxillary siuns middle meatus ethmoidal sinus middle (& superior) meatus

17 Sphenoidal Sinus & Hypophysis

18 Maxillary Sinus

19 X-ray Image of Paranasal Sinuses

20 Arterial Supply of Nasal Cavity ophthalmic a.: anterior & posterior ethmoidal aa. maxillary a.: sphenopalatine artery & greater palatine a. facial a.: septal branch of the superior labial a.

21 Arterial Supply of Nasal Cavity Kisselbach s Area Sites of Arterial Ligation for the Treatment of Severe Nosebleed

22 Venous Drainage of the External Nose Venous Drainage of the Nasal Cavity Venous Drainage of the Nose to facial vein to pterygoid plexus to cavernous sinus

23 The Innervation of Nasal Cavity autonomic inervation olfaction olfactory nerve GSA trigeminal nerve

24 Autonomic Innervation sup. salivatory nuc. facial n. greater ptrosal n. pterygopalatine ganglion mucosa of nasal cavity

25 Overview of the Oral Cavity oral vestibule oral cavity proper teeth tongue Hard & Soft Palate salivary glands Oropharyngeal Isthmus

26 anteriorly: oral fissure & lips laterally: cheeks roof: hard & soft palate floor: mylohyoid & tongue, mainly posteriorly: oropharyngeal isthmus Boundaries of the Oral Cavity

27 oropharyngeal isthmus Palatoglossal Arch Palatopharyngeal Arch Oral Fissure, Lips & Cheeks Orbicularis Oris Buccinator

28 The Palate hard palate (skeleton) soft palate (muscles) Greater Palatine Foramen Lesser Palatine Foramen Incisive Canal / Foramen / Fossa

29 Levator Veli Palatini Tensor Veli Palatini Palatoglossus Palatopharyngeus

30 Palatine Tonsil Palatoglossus & Palatoglossal Arch Palatopharyngeus & Palatopharyngeal Arch

31 Neurovascular Structures greater palatine artery & nerve lesser palatine artery & nerve sphenopalatine artery & nasopalatine nerve (communicating branches)

32 Main Structures hyoid bone & tone submandibular gland & duct sublingulal gland lingual nerve Floor of Mouth mylohyoid muscle geniohyoid muscle * hyoglossus muscle Inferior Alveolar Nerve & Artery

33 Lingual Papillae & Test Bud The Tongue apex body root filiform papillae fungiform papillae calciform papillae foliate papillae Lingual Tonsil

34 Lingual Muscles intrinsic muscles extrinsic muscles - genioglossus muscle - hyoglossus muscle - palatoglossus muscle - styloglossus muscle

35 genioglossus muscle hyoglossus muscle palatoglossus muscle styloglossus muscle

36 Movements of the Soft Palate & Tongue

37 Vessels of the Tongue

38 Innervation of the Tongue

39 Chorda Tympani Facial Nerve & Lingual Nerve

40 Vagus Nerve

41 Salivary Glands & Their Openings Sublingual Fold Sublingual Papilla (Caruncle)

42 Salivary Glands & Their Innervations

43 Parasympathetic Ganglia Submandibular Ganglion - sublingual gland & submandibular gland Ciliary Ganglion - sphincter pupillae, ciliary muscle & dilator pupillae Petrygopalatine Ganglion - lacrimal gland & nasal gland Otic Ganglion - parotid gland

44 The Teeth crown neck root enamel dentin pulp pulp cavity root canal

45 A 4 C Ⅳ B D Dental Formula & Eruption

46 Vessels & Nerves of the Teeth Trigeminal Nerve anterior middle & postetior superior alveolar nn. inferior alveolar n. Maxillary Artery anterior & posterior superior alveolar arteries inferior alveolar artery Pterygoid Plexus

47 superior gum: Sensory Innervation of Teeth & Gums superior & inferior teeth: - superior & inferior alveolar nn. - medially: nasopalatine n. & greater palatine n. - laterally: sup. alveolar n. inferior gum: - medially: lingual n. - laterally: mental n. & buccal n.

48 Special Sensory Sensory Innervation of Mouth & Pharynx General Sensory - trigeminal n.(Ⅴ) - glossopharyngeal n. (Ⅸ) - vagus n. (Ⅹ) - gustatory sensation: facial n. (Ⅶ) & glossopharyngeal n. (Ⅸ)

49 The Lymphatic Drainage of the Nose & Mouth

50 Spaces around the Oral Cavity

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