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Nasal Anatomy (Cartilage, Nasal Cavity, Sinuses, Meatuses, Nasal Mucosa)

Content: Introduction 0:00 External Anatomy of the Nose: 0:50 Anatomy of the Nasal Cavity: 3:00 Olfactory Part: 4:08 Respiratory Part: 04:47 Sinuses and Meatuses: 5:50 Nasal Mucosa: 7:47 Sinusitis 9:53 ------------------------------- 💎Channel membership:    / @taimtalksmed   📷 Follow my IG:   / taimtalksmed   💝 Donation link: https://www.buymeacoffee.com/taimtalk... ------------------------------- External Structures of the Nose: - Root of the Nose (Radix Nasi) - Dorsum of Nose (Dorsum Nasi) - Apex of Nose (Apex Nasi) - Ala of Nose / Wing of nose (Ala Nasi) - Nostrils (Nares) Nasal Cartilage: - Nasal Bones (Os Nasale Dextrum/Sinistrum) - Lateral Nasal Cartilages (Cartilago Nasi Lateralis) - Accessory Nasal Cartilage (Cartilagines Nasales Accessoriae) - Major Alar Cartilage (Cartilagines Alares Major) - Minor Alar Cartilage (Cartilagines Alares Minores) - Septal Nasal Cartilage (Cartilago Septi Nasi) - Alar Fibrofatty Tissue (Tela Fibroadiposus Alaris) - Bony Septal Part (Pars Ossea) Anatomy of the Nasal Cavity: - In front of pharynx, above the palate - Nasal Vestibule (vestibulum nasi) - Nasal Cavity Proper (Cavitas Nasi Proprium) - Limen Nasi Nasal Cavity Proper: - Olfactory Part (Pars Olfactoria) - Respiratory Part (Pars Respiratoria) Olfactory Part (Pars Olfactoria) - Olfactory Tract (Tractus Olfactorius) - Olfactory Bulb (Bulbus Olfactorius) - Olfactory Nerves (Fila Olfactoria) Respiratory Part (Pars Respiratoria) - Choanae / Turbinates - Superior Conchae (Superior Turbinate) - Middle Conchae (Middle Turbinate) - Inferior Conchae (Inferior Turbinate) - Superior Meatus - Middle Meatus - Inferior Meatus - Spheno-Ethmoidal Recess Sinuses and Meatuses: - Sphenoid Sinus opens into sphenoethmoidal recess - Frontal Sinus open into Middle Meatus - Ethmoidal Sinus ○ Anterior Ethmoidal Air cells and Middle Ethmoidal Air Cells to Middle Meatus ○ Posterior Ethmoidal Air Cells open into Superior Meatus - Maxillary Sinus open into Middle Meatus - Nasolacrimal Duct open into Inferior Meatus - Function of Sinuses: ○ Decrease relative mass of the skull ○ Resonance ○ Humidification and warm-up inhaled air ○ Make Mucus to keep the nose from drying out Nasal Mucosa: - Olfactory Mucosa: ○ Olfactory Epithelium ○ Sustentacular Cells (Covid-19 damages these cells causing loss of smell) ○ Basal Cells ○ Tela submucosa contains olfactory glands (Bowmans glands) - Respiratory Mucosa: ○ Respiratory Epithelium (Pseudostratified Columnar Epithelium) ○ Goblet Cells ○ Cilia ○ Tela Submucosa contain mixed mucus glands Sinusitis - Increase mucus in the sinuses that may block them - May be caused by: ○ Common Cold ○ Allergic Rhinitis ○ Nasal Polyps ○ Deviated Septum Sources used in this video: - Memorix Anatomy 2nd Edition by Hudák Radovan (Author), Kachlík David (Author), Volný Ondřej (Author) - Complete Aanatomy by 3d4medical - Biorender - University notes and lectures