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Resp. Syst. CH 19

QuestionAnswer
What do you do with Oxygen in the body? Cellular respiration, beta oxidation
Diffusion through respiratory membrane Molecules diffuse from higher to lowe concentration due to Partial Pressure.
Oxygen and high sea levels Partial pressure of oxygen would be lower in alveolar, body will breath faster to make up for less oxygen.
H2O+CO2 Makes H2CO3 Carbonic Acid (alcacercer) Carbonic anhydrase speeds this up
3 Ways to transport CO2 from cell to lung (BCD)Bicarbonate(HCO3), Carbaminohemoglobin, Diffusion
Bicarbonate (HCO3) Main buffer in blood, neutralize hydrogen ions.
Chloride ions Keep balance between ions
Lung location Thoracic cavity
diaphragm inhaling contracted(-) more vol/less pressure
diaphragm exhaling relaxed(n)less volume/more pressure
Emphysema destroys many alveolar walls,weakened & collapsed air sacs w/excess mucus.
Bronchitis inflamation of bonchi, the main air passages to lungs
COPD Chronic Obstructive Pulmonary Disorder. 2 main COPD=emphysema & chronic bronchitis. Chronic lung disorders that result in blocked air flow in the lungs, damage is permanent and irreversable.
What controls breathing? Medulla and Pons
Phrenic nerve nerve from cervical plexus that stimulates the muscle fibers of diaphragm to contract
Asthma chronic bronchial inflammatory disorder with airway obstruction due to bronchial edema and constriction and increased mucus production
What's happening because of pressure in lungs? Oxygen from Alveolar=>Blood CO2 from Blood=>Alveolar
What happening because of pressure in cells? CO2 from Cells=>Blood Oxygen from Blood=>Cells
Created by: nadiapr
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