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Respriatory Anatomy
contains unit 22 pre lab excercise
29
Anatomy
Undergraduate 1
10/26/2012

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Term
Pulmonary Ventilation def
Definition
Physical movement of moving air in & out of respiratory tract.
Term
Pulmonary Ventilation fcn
Definition
to maintain alveolar ventilation, prevents CO2 buildup
Term
External respiration def
Definition
Includes all processes involved in exchange of oxygen and CO2 btwn body’s interstitial fluids & external fluid.
Term
Gas transport def
Definition
the movement of gases through blood
Term
Internal Respiration def
Definition
Is the absorption of oxygen & release of CO2 by cells
Term
Inspiration
Definition
inhalation
Term
Expiration
Definition
exhalation
Term
Boyles Law
Definition
P= 1/V
Decrease vol. of gas, Pressure rises
Term
Intrapulmonary pressure aka
Definition
intra-alveolar pressure
Term
Intrapulmonary pressure def
Definition
Pressure inside respiratory tract at the alveoli
Term
During inhalation, Intrapulmonary pressure?
Definition
pressure drops -1 mmHg
Term
During exhalation,Intrapulmonary pressure?
Definition
increases +1mmHg
Term
Atmospheric pressure def
Definition
Compression by the weight of the Earth’s atmosphere
Term
spirometer def
Definition
Instrument used to measure volumes of air
Term
Respiratory volume def
Definition
Volumes of air that are exchanged with each breath
Term
Respiratory capacity def
Definition
When Two or more respiratory volumes combine
Term
Obstructive disease
Definition
Increased airway resistance caused by narrowing of bronchioles, increased mucous secretion,or a tumor.
Ex. COPD (chronic obstructive pulmonary disease) & asthma
Term
Restrictive disease def
Definition
Loss of elasticity of lung tissues
Ex. Pulmonary fibrosis
Term
Water soluble form of carbon dioxide
Definition
Biocarbonate
Term
Carbonic acid-bicarbonate buffer system
Definition
Occurs when CO2 reacts with water to form carbonic acid which dissociates to hydrogen ion & bicarbonate
Term
Carbonic anhydrase def
Definition
catalyzes Carbonic acid-bicarbonate buffer system rxn
Term
hyperventilation def
Definition
Increase in rate & depth of ventilation,
Term
hyperventilation, has ____ CO2
_____carbonic acid
blood ph ______
Definition
increases (output)
less carbonic acid
blood PH lowers (acidic)
Term
hypoventilation def
Definition
decrease in rate & depth of ventilation,
Term
hypoventilation, has ____ CO2
_____carbonic acid
blood ph ______
Definition
decrease in CO2 (blood)
more carbonic acid
blood PH highers
Term
Respiratory alkalosis
Definition
increased respiration
elevates the blood pH
hypovenitilation
Term
Respiratory acidosis
Definition
decreased respiration
decreases the blood pH

hypervetilation
Term
ventiliation
Definition
replacement of stale air with fresh air
Term
respiration
Definition
is the exchange of O2 and CO2
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