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A&P Unit 22 lab
respiratory
30
Anatomy
Undergraduate 1
02/18/2011

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Term
Ventilation
Definition
Movement of air in and out of lungs
Term
External Respiration
Definition
Gas exchange between air in lungs and blood
Term
Internal Respiration
Definition
Gas exchange between the blood and tissues
Term
Gas Exchange
Definition
Oxygen enters blood and carbon dioxide leaves
Term
Regulation of blood pH
Definition
Altered by changing blood carbon dioxide levels
Term
Voice production
Definition
Movement of air past vocal folds makes sound and speech
Term
Olfaction
Definition
Smell occurs when airborn molecules draw into nasal cavity
Term
Protection
Definition
Against microorganisms by preventing entry and removing them
Term
The Nose functions 4 things
Definition
-Passageway for air
-Cleans the air
-Humidifies, warms air
-Smell
Term
Pharynx function
Definition
-Common opening for digestive and respiratory systems
Term
Larynx functions 3
Definition
-Maintains an open passageway for air movement.
-Epiglottis and vestibular folds prevent swallowed material from moving into larynx.
-Vocal folds are primary source of sound production.
Term
Conducting Zone
Definition
-Trachea to terminal bronchioles which is ciliated for removal of debris.
-Cartilage holds tube system open and smooth muscle control tube diameter.
Term
Respiratory Zone
Definition
-Respiratory bronchioles to alveoli
-Site for gas exchange.
Term
Pleural fluid is produced by....
Definition
Pleural membranes
Term
Surfactants
Definition
reduce surface tension by disrupting the cohesive forces between water molecules
Term
Surfactants also result in an ___________ and a ___________ in the force needed to inflate the lungs
Definition
increase in lung compliance; decrease
Term
Movement of air into and out of the lungs is called.....
Definition
Ventilation
Term
Air moves from an area of ____ pressure to are of _____ pressure.
Definition
higher;lower
Term
Tidal Volume (TV)
Definition
Volume of air inspired or expired during a normal inspiration.
Term
Inspiratory reserve volume (IRV)
Definition
Amount of air inspired forcefully after inspiration of normal tidal volume.
Term
Expiratory reserve volume
Definition
Amount of air forcefully expired after expiration of normal tidal volume.
Term
Residual volume (RV)
Definition
Volume of air remaining in respiratory passages and lungs after the most forceful expiration.
Term
Inspiratory Capacity (IC)
Definition
Tidal Volume (TV) plus inspiratory reserve volume.
Term
Functional residual capacity (FRC)
Definition
Expiratory reserve volume plus residual volume.
Term
Vital Capacity (VC)
Definition
Sum of inspiratory reserve volume, tidal volume, and expiratory reserve volume
Term
Total lung capacity
Definition
Sum of inspiratory and expiratory reserve volumes plus the tidal volume and residual volume.
Term
Minute Ventilation
Definition
Total amount of air moved into and out of respiratory system per minute.
Term
Respiratory rate or frequency
Definition
Number of breaths taken per minute.
Term
Anatomic dead space
Definition
Part of the respiratory system where gas exchange does not take place.
Term
Alveolar ventilation
Definition
How much air per minute enters the parts of the respiratory system in which gas exchange does take place.
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