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Terms in this set (43)
What is within the upper respiratory system?
nose, nasal cavity, mouth, pharynx, and larynx
What is within the lower respiratory system?
Trachea, lungs, bronchial tree
What is the order of the airway?
nose, nasal cavity, mouth, pharynx, larynx, trachea, bronchi, and bronchial network
What is the pharynx?
throat (passage way for food and air)
What is the larynx?
What is the trachea?
What is the airway lined with and what does it do?
cilia that traps microbes and debris
What do the lungs house?
Bronchi and bronchial network, and alveoli sacs
___________ extends into lungs and terminate in millions of alveoli (air sacs).
How many lobes does the right lung have?
How many lobes does the left lung have?
What does the pleural membrane do?
reduce friction between surface when breathing
What are the respiratory muscles?
diaphragm and intercostal muscles
What is the function of the respiratory system?
supply body with oxygen and rid body of carbon dioxide
Where does the exchange of gasses occur?
Respiratory system filter air?
air is warm and moistened which filters as it passes through nasal
After air passes through the pharynx move to __________.
After air passes through the larynx it enters the __________.
What is the term for maintaining body acid base?
What happens during breathing?
Diaphragm/intercostal will contract to expand the lungs
What happens during inspiration/inhalation?
diaphragm contacts and moves down. (increase size of chest)
_______________ muscles contract ribs expand which increase chest cavity.
What happens when the Diaphragm-intercostal relax?
What does expiration mean?
What does the medulla oblongata do?
1. controls breathing
2. monitors levels of carbon dioxide in blood
3. signals breathing rate to increase when levels too high of carbon dioxide
During contraction the diaphragm _________________.
decreases in alveolar pressure
___________ is a double layered membrane that lines the lungs
Largest to smallest in diameter?
trachea --> bronchi --> bronchioles
Mechanical process of normal breathing during expiration?
Diaphragm relaxes and moves upward, while intercostal muscles relax and ribs move downward
What is tidal volume?
volume of air with normal breathing
Exhibit an increase in lung compliance?
What is produced by the lungs for the purpose of reducing surface tension?
Sequence of air inhaled?
nasal cavity -> pharynx -> larynx -> trachea -> bronchi -> bronchioles
What is the exchange of oxygen and carbon dioxide across the alveolar membrane?
What structure prevents food from entering the respiratory system?
What is the term for movement of air in and out of the lungs?
Voluntary holding breath will?
innate reflex of breathing due to increase carbon dioxide levels
Lungs with low level of compliance?
stiff lungs require extra work to accomplish normal breathing
What is the function of pulmonary surfactant?
prevent lung collapse and reduce surface tension, and increase in lung compliance
Which organ uses hair to filter out particles that try and enter the lungs?
______________ occurs between the lungs and blood
_____________ occurs between the blood and tissues
What happens during internal respiration?
oxygen is exchanged for carbon dioxide in circulation
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