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Exam 12

QuestionAnswer
Inhaled air is warmed and moistened by the Nasal mucosa
The nasal cavities are lined with Ciliated epithelium to sweep mucus posteriorly
Increase the surface area of the nasal mucosa Conchae
The part of the pharynx that are both air and food passageways are the Oropharynx and laryngopharynx
During swallowing, the nasopharynx is covered by the Soft palate
During swallowing the larynx is covered by the Epiglottis
The palatine tonsils are ___ tissue, and are found in the ____. Lymphatic, oropharynx
The airways of the larynx and trachea are kept open by Cartilage
Mucus and pathogens are swept out of the larynx and trachea by Ciliated epithelium
The trachea is ___ to the esophagus and ____ to the larynx Anterior, inferior
The trachea branches into the Primary bronchi, one to each lung
The parts of the bronchial tree that opens into the alveoliare the Bronchioles
The serous membrane that lines the chest cavity Parietal pleura
The serous membrane that covers the lungs Visceral pleura
During breathing, friction between the pleural membranes is prevented by Serous fluid
The aveoli are made of simple squamous epithelium which Permits diffusion
Inflation of the alveoli is made possible by the presence of ____ with in the alveoli. Surfactant
The function of pulmonary surfactant is to Decrease surface tension within the alveoli.
Pulmonary surfactant is produced by Alveolar type II cells
The diaphragm is made of ____ , and separates the ____. Skeletal muscle, thoracic and abdominal cavities
During exhalation the diaphragm Relaxes and moves upward
The external intercostal muscle pulls the ribs Up and out, for inhalation
The air pressure outside the body is called Atmospheric pressure
The air pressure within the bronchial tree in The Al Villa is is called Intrapulmonic pressure
During inhalation intrapulmonic pressure___ and air Decrease, enters the alveoli
The respiratory air pressure that is always negative is Intrapleural pressure
The volume of air inhaled and exhaled in one breath is called Tidal volume
The volume of air in left in lungs after the most forceful Excel is called Residual air
Residual air Is important because it provides continuous exchange of gases
If total lung capacity is 5000 ml the vital capcity is 4000 ml the remaining leader of air is Residual air
External respiration is The exchange of gases in the alveoli
In external respiration the partial pressure are Alveoli high po2,low poc2; tissue fluid low po2, high poc2
In internal respiration is the partial pressure are Capillaries High po2, low pco2, tissue fluid low po2, High pco2
Most oxygen is transported in the blood bonded to the Hemoglobin in the rbc's
Hilo hemoglobin will release oxygen where the Po2 is low
Exercising muscles will receive more oxygen from hemoglobin then we'll relax muscle because Po2 is low it's pco2 is high and it's temperature is higher than usual
With respect to carbon dioxide transport the function of hemoglobin is to Buffer hydrogen ions
The CNS respiratory Center are located in the Medulla, pons
the nerves that to the diaphragm are called Phrenic nerves
The CNS Center that promotes inhalation are the Inspiration center and apneustic center
Normal exhalation is usually passive because of the Elasticity of the lungs
The strongest stimulus for breathing is blood with a High level of carbon dioxide
For healthy people in a more engine respiration per minute is 12 to 20
The chemoreceptors that detect decrease in blood oxygen levels are located in Aortic and carotid bodies
In respiratory acidosis the pH of the blood might be 7.32
A blood pH of 7.32 indicates Acidosis
A patient with severe emphysema may also have Respiratory acidosis
Respiratory alkalosis would be most likely with breathing rate of 32 per minute
To compensate for metabolic acidosis the respiratory rate will Increase to help raise the pH of body fluids
If carbon dioxide accumulates in the body fluids the pH of the fluid will Decrease
Created by: Tera2008
 

 



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