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41 Cards in this Set
- Front
- Back
- 3rd side (hint)
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What is the main function of the lungs ? |
To circulate oxygen from the air and remove carbon dioxide from blood |
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How is the RS related to cell energy? |
The cells obtain energy through mechanisms which use oxygen and produce CO2. |
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What are the functions of the respiratory systems |
1. Gas exchange 2. protects respiratory surfaces from outside environment 3. sound Production 4. Olfactory sense
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GOPS |
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What does the conduction portion of the respiratory tract consist of ? |
- the nasal cavity to the terminal bronchioles |
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what structures are in the conduction part of the RT |
-Nasal cavity - Pharynx (nasopharynx) - Larynx -Trachea -Bronchi -Bronchi terminals |
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what does the respiratory portion of the RT consist of |
alveoli and respiratory bronchioles |
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What happens in the alveoli? |
gas exchange
(there are about 300 million alveoli) |
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what are alveoli |
air filled sacs |
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what structure divides the upper and lower respiratory tracts ? |
the larynx |
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What structures does the upper respiratory tract consist of ? |
-Nose -Nasal Cavity -Pharynx |
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What structures are in the lower RT ? |
-Larynx -Trachea -bronchi -lungs |
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what are the 2 components of the nose |
-internal and external nose |
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What structure forms the bridge of the nose? |
nasal bone |
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whats the nasal bone an extension of? |
frontal and maxillary bones |
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whats the external nose constructed from ? |
-Septal cartilage -Greater alar cartilage -Nasal bone |
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Name the labels 1-7 |
1. alar cartilages 2. septal cartilage 3. lateral nasal cartilages 4.fibrous connective tissue 5.maxilla 6. nasal bones 7. frontal bone |
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What does the internal nasal cavity consist of ? |
-nares -vestibule -nasal conchae (internal nares ) -posterior region of the nasal cavity |
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what material is the anterior portion of the nasal septum made from ? |
cartilage |
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whats the more posterior region of the nasal septum made from |
Vomer bone and ethmoid bone |
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what makes up the nasal floor cavity |
Hard palate |
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what are the 3 bony ridges of the lateral wall of the NC |
superior, middle and inferiorchonchae |
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what lies between the conchae |
Superior, middle and inferior meatuses |
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what are the functions of the meatuses |
-air turbulance -warm and humidify air -trap particles |
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within which meatuses do the openings paranasal sinuses lie ? |
superior and middle |
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what lies between the superior and middle meatuses |
opening of paranasal sinus |
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where is the opening of the nasolacrimal duct ? |
inferior meatus |
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what lines the vestibule of the nasal cavity ? |
stratified squamous epithelium |
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what lines the posterior nasal cavity |
pseudo-stratified ciliated columnar epithelial cells and goblet cells |
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which region of the nasal cavity does olfactory epithelium occur ? |
superior region |
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the pharynx is shared by which two systems |
digestive and respiratory |
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what 3 parts is the pharynx divided into ? |
1.The nasopharynx 2.The oropharynx 3.The laryngopharynx |
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what structurs lie in the nasopharynx |
-opening to auditory tubes (L+R) -pharyngeal tonsils |
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which cacity does the oropharynx connect with |
oral cavity |
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from what bone does the laryngopharynx extend from |
hyoid bone |
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the oropharynx is considered as the junction point between what 2 structures |
-GI tract and respiratory tract |
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what 2 things pass through the oropharynx ? |
food and air |
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What part of the pharynx extends from the uvula to epiglottis |
oropharynx |
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what lines the oropharynx |
stratified squamous epithelium
( Stratified * mechanical friction (e.g food) - rubbing and physical trauma from external sources* chemical damage - environmental and internal chemicals/compounds degrading epithelial lining) |
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What tonsils occupy the oropharynx ? |
lingual and palatine tonsils |
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what structure extends from the epiglottis to openings of the oesophagus and larynx |
laryngopharynx |
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whats the larynx |
A cartilaginous structure that surrounds the glottis, which is a narrow opening |
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