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Anatomy Q4


breathing; moving air in and out of the lungs pulmonary ventilation
exchange of gases between the blood & the air at the lung alveoli external respiration
the blood transports carbon dioxide and oxygen transport of respiratory gases
gas exchange between blood & the tissue cells internal respiration
transports the air conducting zone
includes all structures of the respiratory system up to (but not including) the respiratory bronchioles conducting zone
the conducting zone ends at the _____ _____ terminal bronchioles
the site of gas exchange respiratory zone
the end part of the respiratory tree respiratory zone
the respiratory zone starts at the _____ _____ respiratory bronchioles
provides an airway for respiration; moistens and warms air; filters inhaled air nose
nostrils anterior nares
the nasal cavity is divided by the ___ ___ nasal septum
the nasal cavity is continuous with the ____ nasopharynx
superior portion of the nasal septum perpendicular plate of the ethmoid bone
cribriform plate, sphenoid bone, & frontal bone roof of the nasal cavity
hard palate & soft palate floor of the nasal cavity
nasal septum medial wall of the nasal cavity
inferior nasal conchae bones & conchae of the ethmoid bone lateral walls of the nasal cavity
project medially form the lateral wall of the nasal cavity nasal conchae
funnel-shaped passageway; connects nasal cavity and mouth pharynx
superior to the point where food enters nasopharynx
3 locations of the pharynx nasopharynx, oropharynx, laryngopharynx
the nasopharynx is ___ an air passageway only
adenoids pharyngeal tonsils
located on the posterior wall of the nasopharynx; destroys entering pathogens pharyngeal tonsils
extends from soft palate to epiglottis oropharynx
arch-like entranceway (fauces) oropharynx
passageway from back of mouth (fauces) oropharynx
passageway for both air & food laryngopharynx
continuous with the esophagus & larynx laryngopharynx
3 functions of the larynx 1. voice production 2. provides an open airway 3. routes air & food into the proper channels
ridge that divides the trachea carina
the windpipe trachea
the trachea descends into the ____ mediastinum
the trachea divides into two main ____ at the ____ bronchi; carina
____ ____ keep airway open cartilage rings
the trachea contains 16-20 ____ ____ ____ separated by fibrous connective tissue C-shaped cartilage rings
extensively branching respiratory passageways bronchial tree
the bronchial tree has __ divisions 23
largest bronchi primary bronchi
there are __ primary bronchi 2
there are __ right secondary bronchi 3
the right secondary bronchi are ____ and ___ than the left wider, shorter
there are __ left secondary bronchi 2
there are __ tertiary bronchi in each lung 10
branch from terminal bronchioles & lead to alveolar ducts respiratory bronchioles
a double-layered sac surrounding each lung the pleurae
two layers of the pleurae parietal & visceral pleura
potential space between the visceral and parietal pleurae pleural cavity
___ help divide the thoracic cavity pleurae
surface that abuts the ribs costal surface
superior tip of each lung apex
inferior surface of lungs base
base of the lungs diaphragmatic surface
medial surface of each lung mediastinal surface
opening for nerves, bronchi, vascular hilus
region for the heart cardiac notch
the left lung has __ lobes 2
the right lung has __ lobes 3
which lung contains an oblique fissure? left lung
which lung contains a horizontal/transverse fissure & an oblique fissure? right lung
the horizontal/transverse fissure is located _____ superiorly
the oblique fissure is located ____ inferiorly
each lung has __ segments 10
the smallest lung division you can see by the naked eye lobule
connective tissue in the lungs giving support stroma
"supporting mattress" stroma
deliver oxygen-poor blood to the lungs pulmonary arteries
carry oxygenated blood to the heart pulmonary veins
parasympathetic fibers ___ airways constrict
sympathetic airways ___ airways dilate
The exchange of gases between the blood and air at the lung alveoli is called external respiration
The trachea is part of the ____ zone conducting
The roof of the nasal cavity is formed by the ___ bones ethmoid & sphenoid
The most inferior region of the pharynx is the laryngopharynx
The "guardian of the airways" is the epiglottis
The ___ marks the point where the trachea branches into the primary bronchi carina
There are __ fissure(s) and ___ lobar bronchi in the left lung one. two
The first part of the respiratory zone includes the ___ bronchioles respiratory
The surface of the lungs in contact with the diaphragm is called the diaphragmatic surface OR ___ base
The fissures in the right lung horizontal/transverse & obligque
Created by: leahmurphy