| Term 
 
        | Parts of Upper Respiratory Tract |  | Definition 
 
        | Nose Nostril
 Nasal Cavity
 Oral Cavity
 Pharynx
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        | Term 
 | Definition 
 
        | Only portion of the resiratory tract (RT) that is externally visible Air enters here during breathing, passes through the external nares (nostrils)
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        | Term 
 | Definition 
 
        | Superior to nostrils, skin lined with sebaceous glands, sweat glands and hairs |  | 
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        | Term 
 | Definition 
 
        | thicker hairs of the vestibule of the nose, filters large particles (insects) |  | 
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        | Term 
 
        | Functions of nasal cavity |  | Definition 
 
        | provides airway for respiration moistens and warms air
 filters inhaled air
 resonating chamber for speech
 houses olfactory receptors
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        | Term 
 | Definition 
 
        | divides nasal cavity into right and lefts sides |  | 
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        | Term 
 | Definition 
 
        | made up of ethmoid bone (cribiform plate) |  | 
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        | Term 
 | Definition 
 
        | made up of maxilla (palatine process), palatine bone (horizontal plate) |  | 
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        | Term 
 
        | lateral walls of nasal cavity |  | Definition 
 
        | nasal bones, superior and middle nasal conchae of ethmoid bone, inferior nasal conchae, maxilla, palatine bone |  | 
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        | Term 
 | Definition 
 
        | made up of palatine bone and maxillary bone |  | 
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        | Term 
 | Definition 
 
        | made up of skeletal muscle-posterior portion, end in uvula |  | 
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        | Term 
 | Definition 
 
        | made up of respiratory mucosa and olfactory mucosa |  | 
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        | Term 
 | Definition 
 
        | pseudostratified ciliated columnar epithelium, globlet cells, lamina propria, venous plexus,highly innervated, function to filter and warm inhaled air |  | 
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        | Term 
 | Definition 
 
        | roof of nasal cavity, houses smell receptors, no goblet cells, cilia modifed for olfaction |  | 
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        | Term 
 | Definition 
 
        | project medially from each lateral wall function - create turbulence of air to increase 1. filtration, heating and moistening during inhalation 2. reclaim heat and moisture
 3 pairs - superior, middle and inferior
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        | Term 
 | Definition 
 
        | air filled cavities that surround the nasal cavity, line by mucosa, perform same function as nasal cavity and lightens skull located in frontal, sphenoid, ethmoid and maxilla bones
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        | Term 
 | Definition 
 
        | connects the nasal cavity and mouth to larynx and esophagus, common passage for food and air (collectively), contains skeletal muscle divided into: nasopharynx, oropharynx, laryngopharynx
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        | Term 
 | Definition 
 
        | lymphoid organ, swellings of the mucosa lining the pharynx, form a ring around the entrance of the pharynx, remove pathogens 4 groups: palatine, lingual, pharyngeal (adenoides) and tubal
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        | Term 
 | Definition 
 
        | located posterior to nasal cavity, inferior to spenoid bone and superior to level of soft palate, is ONLY an air passageway, closed off during swallowing by the soft palates uvula, made of ciliated pseudostratisfied columnar epithelium contains both the pharyngeal tonsils (adenoids) and tubal tonsils
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        | Term 
 | Definition 
 
        | located posterior to the oral cavity, extends inferiorly from level of the soft palate to the level of the epiglottis, swallowed food and inhaled air pass through here, made of stratisfied squamous epithelium contain the palatine and lingual tonsils
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        | Term 
 | Definition 
 
        | located posterior to larynx and continuous with the esophagus and larynx, common passageway for food and air, stratisfied squamous epithelium |  | 
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        | Term 
 | Definition 
 
        | "voice box", extends from C4-C6, continuous with trachea inferiorly, attaches to hyoid bone superiorly, provides open airway, vocalization, switches to route air and food into proper channels, is innervated by the vagus nerve superior part is made up of stratisfied squamous epithelium, below vocal cords- ciliated pseudostratisfied columnar epithelium
 composed of 9 cartilages connected by membranes and ligaments
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        | Term 
 | Definition 
 
        | 1 Thyroid 1 Cricoid
 1 Epiglottis
 2 Arytenoid
 2 Corniculate
 2 Cuneiform
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        | Term 
 | Definition 
 
        | largest area of cartilage of the larynx,shield shaped,formed by 2 plates, contains larygeal prominence "adam's apple" |  | 
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        | Term 
 | Definition 
 
        | inferior to thryroid cartilage, formas a complete ring, directly superior to trachea |  | 
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        | Term 
 | Definition 
 
        | composed go elastic cartilage, covered by mucosa, projects upward from anterior wall of laryngeal inlet to level of base of tongue, closes off larynx during swallowing |  | 
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        | Term 
 | Definition 
 
        | mucosal folds formed by vocal ligaments located in the larynx, exhaled air passes over them and causes vibration |  | 
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        | Term 
 | Definition 
 
        | located in anterior neck on trachea inferior to larynx, consists of two laterl lobes connected by the isthmus and is butterfly shaped, is the largest endocrine gland in the body |  | 
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        | Term 
 | Definition 
 
        | hormone from thryroid gland which increases metabolic rate |  | 
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        | Term 
 | Definition 
 
        | hormone from thyroid gland depresses excess levels of calcium in blood |  | 
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        | Term 
 | Definition 
 
        | 4 of them, two pairs, located on the deep surface of the laterl lobbes of the thyroid gland, it is an endocrine gland |  | 
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        | Term 
 
        | Parathyroid hormone/parathormone |  | Definition 
 
        | from the parathyroid glands, increases blood calcium levels |  | 
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        | Term 
 | Definition 
 
        | A bone associated with the skull, only bone in skeleton that has no articulation to another bone, located inferior to mandible and anterior in neck, attaches via ligaments to tempotal bone, larynx |  | 
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        | Term 
 | Definition 
 
        | neck subdivided into 2 triangles- anterior and posterior triangles separated by the sternoclidomastoid muscl
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        | Term 
 
        | Posterior triangle of the neck |  | Definition 
 
        | boundaries: anterior - sternocleidomastoid
 posterior - trapezius
 inferior - clavicle
 Contents:
 nerves- accessory nerve, phrenic nerve, brachial plexus
 artery - subclavian
 vein - external jugular
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        | Term 
 
        | Posterior triangle of the neck |  | Definition 
 
        | boundaries: anterior - sternocleidomastoid
 posterior - trapezius
 inferior - clavicle
 Contents:
 nerves- accessory nerve, phrenic nerve, brachial plexus
 artery - subclavian
 vein - external jugular
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        | Term 
 
        | Anterior triangle of the neck |  | Definition 
 
        | boundaries: anterior - midline
 posterior - sternocleidomastoid
 superior - inferior margin of the mandible
 contents:
 glands - submandibular
 muscles - suprahyoid and infrahyoid muscles
 artery- common carotid
 vein- internal jugular, external jugular
 nerve- accessory
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        | Term 
 
        | Oral Cavity and associated organs |  | Definition 
 
        | Consists of mouth and external salivary glands |  | 
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