Dept. of Human Anatomy, Si Chuan University Zhou hongying eaglezhyxzy@163.com Nose & Mouth OUTLINE Nose - Nasal Cavity & Its Walls - Paranasal Sinuses - Neurovascular Structures Mouth - Oral Cavity & Its Contents - Salivary Glands - Neurovascular Structures
Overview of the Nose external nose septum nasal cavity Relations of the Nasal Cavity
The Skeletone of Chonanae
Anterior & Posterior Rhinoscopy
External Nose Surface Features
Nasal Cartilages septal nasal cartilage major & minor alar cartilage accessory nasal cartilage Apex
Floor Walls of the Nasal Cavity Roof
ethmoid bone & nasal cavity cribriform plate labyrinth ethmoid cells perpendicular plate superior concha middle concha uncinate
ethmoid bone & nasal cavity
The Nasal Septum perpendicular plate of ethmoid bone vomer septal cartilage nasal crest (maxilla & palatine) mucosa
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
Nasal Vestibular & Nasal Cavity Proper sphenoethmoidal recess superior conchas & meatus middle conchas & meatus inferior conchas & meatus
Superior, Middle & Inferior meati Medial Wall Overview of the Nasal Cavity Lateral Wall
Paranasal Sinuses frontal sinus sphenoid sinus maxillary sinus ethmoid air cells (anterior, middle & posterior)
The Paranasal Sinuses
Openings of Paranasal Sinuses frontal sinus middle meatus sphenoidal sinus sphenoethmoidal recess maxillary siuns middle meatus ethmoidal sinus middle (& superior) meatus
Sphenoidal Sinus & Hypophysis
Maxillary Sinus
X-ray Image of Paranasal Sinuses
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.
Arterial Supply of Nasal Cavity Kisselbach s Area Sites of Arterial Ligation for the Treatment of Severe Nosebleed
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
The Innervation of Nasal Cavity autonomic inervation olfaction olfactory nerve GSA trigeminal nerve
Autonomic Innervation sup. salivatory nuc. facial n. greater ptrosal n. pterygopalatine ganglion mucosa of nasal cavity
Overview of the Oral Cavity oral vestibule oral cavity proper teeth tongue Hard & Soft Palate salivary glands Oropharyngeal Isthmus
anteriorly: oral fissure & lips laterally: cheeks roof: hard & soft palate floor: mylohyoid & tongue, mainly posteriorly: oropharyngeal isthmus Boundaries of the Oral Cavity
oropharyngeal isthmus Palatoglossal Arch Palatopharyngeal Arch Oral Fissure, Lips & Cheeks Orbicularis Oris Buccinator
The Palate hard palate (skeleton) soft palate (muscles) Greater Palatine Foramen Lesser Palatine Foramen Incisive Canal / Foramen / Fossa
Levator Veli Palatini Tensor Veli Palatini Palatoglossus Palatopharyngeus
Palatine Tonsil Palatoglossus & Palatoglossal Arch Palatopharyngeus & Palatopharyngeal Arch
Neurovascular Structures greater palatine artery & nerve lesser palatine artery & nerve sphenopalatine artery & nasopalatine nerve (communicating branches)
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
Lingual Papillae & Test Bud The Tongue apex body root filiform papillae fungiform papillae calciform papillae foliate papillae Lingual Tonsil
Lingual Muscles intrinsic muscles extrinsic muscles - genioglossus muscle - hyoglossus muscle - palatoglossus muscle - styloglossus muscle
genioglossus muscle hyoglossus muscle palatoglossus muscle styloglossus muscle
Movements of the Soft Palate & Tongue
Vessels of the Tongue
Innervation of the Tongue
Chorda Tympani Facial Nerve & Lingual Nerve
Vagus Nerve
Salivary Glands & Their Openings Sublingual Fold Sublingual Papilla (Caruncle)
Salivary Glands & Their Innervations
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
The Teeth crown neck root enamel dentin pulp pulp cavity root canal
A 4 C Ⅳ B D Dental Formula & Eruption
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
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.
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)
The Lymphatic Drainage of the Nose & Mouth
Spaces around the Oral Cavity