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3 major componets upper airway
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4 Primary functions of Upper Airway
- Conductor of Air
- Humidify Air
- Prevent Aspiration
- Area for Speech and Smell
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5 Primary Functions of Nose
- Filter
- Humidify
- Warm
- Smell
- Resonates in Phonation
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Identify these 7 structures that form the outer portion of the nose:
- Nasal Bones
- Frontal process of the maxilla
- Lateral nasal cartilage
- Greater alar cartilage
- Lesser alar cartilages
- Septal cartilage
- Fibrous fatty tissue
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Be able to identify the structures that form the internal portion of the nose:
- -Nasal Septum- perpendicular plae of the ethmoid,Vomer,Septal catilage
- -Nasal Bones-Frontal process for the maxilla-Cribriform plate of the ethmoid-Palatine processs of the maxilla-Palatine bones-Soft palate-Nares-Vestibule-Vibrssae-Stratified squamous epithelium-Pseudostratified ciliated columnar epithelium -Turbinates(conchae)Superior,Middle,Inferior-Paranasal sinuses,Maillary,Frontal,Ethmoid,Sphenoid-Olfactory Region-Choanae
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Identify structures of Oral cavity
- Vestibule-Hard Palate,Palatine process of the maxilla,Palatine bones
- - Soft palate-Uvula-Levator veli palatinum muscle-Palatopharyngeal muscles-Stratified squamous epithelium-Palatine arches,Palatoglossal arch,Palatopharyngeal arch-Palatine tonsils
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Where are and what is the job of the Conducting Airway
Conducting airway is passageway between ambient environment and the alveoli of the lungs important to overall ventilation no gas exchange occurs it this area
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Outer portion of the Nose is composed of...
Bone & Cartilage
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The upper third of the nose or bridge is made of these two...
- Nasal Bones
- Frontal process of the Maxilla
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The lower 2/3rds of the Nose consists of these 4 cartilages and one tissue...
- Lateral nasal caritlage
- Greater alar cartilage
- Lesser alar cartilage
- Septal cartialge
- Fibrous fatty tissue
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What 2 bones form the posterior nasal septum
Perpendicular plate of the Ethmoid bone and the Vomer
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What seperates the nasal cavity into 2 equal parts?
Nasal Septum
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The anterior of the septum is formed by...
Septal Cartilage
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The roof of the nasal cavity is formed by these 3 bones
- Nasal Bones
- Frontal process of the maxilla
- Cribriform of the ethmoid plate
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The floor of the nasal cavity also forms the roodf of the mouth hard palate and is composed of 2 bones..
- Palantine process of the maxilla
- The Palantine bones
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The posterior section of the nasal cavity floor is formed by the superior portion of the Soft Palate of the oral cavity and is composed of..
soft palate consists of a flexible mass of densely packed collagen fibers
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Air enters the nasal cavity through the two openings formed by the septal cartilage and the alae nasi called the..
Nares or Nostrils
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What is the Vestibule of the nose
Vestibule is the slightly dilated area where air initally passes through
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Vibrissae are what and where?
Contained in the vestibule the vibrissae are hair follicles that function as a filter and is the first line of defense for the tracheobronchial tree
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What lines the anterior one-third of the nasal cavity
Noncilitated Stratified Squamous epthelium lines the anterior one third of the nasal cavity
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The posterior two-thirds of the nasal cavity arelined with
Ciliated Pseudostratified columnar epithelium-the cilia porpel mucus toward the nasopharynx
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Name the 3 boney protrusions on the lateral wall of the nasal cavity
superior, middle and inferior nasal turbinates or conchae-the turbinates seperate inspired gas into several different airstreams which increases contact of inspired air to the warm moist surface of the nasal mucosa for humidification and warming
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Where are the Paranasal sinuses located
Paranasla sinuses are the air filled cavities openings located immediatley below the superior and middle turbinates (conchae) in the bones of the skull that communicate with the nasal cavity
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Name the 4 sinuses that comprise the Paranasla sinus
- Maxillary
- Frontal
- Ethmoid
- Sphenoid sinuses
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role of the Paranasla sinus
- produce mucus
- act as resonating chambers
- receptors for sense of smell
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Location of the Olafactory receptors
sense of smell receptors located in the olfactory region which is near the superior and middle turbinate (chonchae)
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Choanae are ...
The two nasal passageways between the nares and the nasopharnyx are called the Chonanae
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