Comes from the KIDNEYS in response to low O2-then stimulates bone marrowĭissolved gas, bound gas (O2)s, and chemically modified gas (CO2) Thickness of alveoli, surface area, gas quality, blood flow, # of blood cells What is the diffusion coefficient for CO2? Gases move by simple diffusion and volume of gas transferred depends upson diffusion coefficient of the gas, surface area, partial pressure difference, and thickness of the membrane The larger the alveolus the _ the collapsing pressureĭPPC that lines the walls of the alveoli and breaks up the forces bw the liquid molecules lining the alveoli Keeps the alveoli expanded or prevents them from collapsing and helps to keep chest wall intactĪlveoli collapse and chest wall collapses Is intrapleural pressure positive or negative? Ex: asthma, chronic bronchitisĬondition where you loose elastic fibers of the lung and as result, compliance increases (cant snap back) Restricted on OUTSIDE, alveoli can not expand. How many molecules of oxygen can bind to hemoglobin? The lungs are the only tissue that can redirect its own blood flow Volume of air into and out of the lungs per unit time, expressed as minute ventilation which = VT x breaths/min More and more aveoli in the respiratory zone What happens when the physiological dead space increases? Total volume of the lungs that does NOT participate in gas exchange and in a normal persons the physiological dead space is nearly equal to anatomic dead spaceĭoes physiological dead space participate in gas exchange? How much of tidal volume fills the anatomic dead space? Is pulmonary blood flow evenly or unevenly distributed? It stimulates the beta2 receptors to cause broncodilationĮxercise, climate, allergies, stress, elevation, chemicalsĬollapsed alveoli due to lack of surfactantĬardiac output from the RIGHT side of the heart What receptors are present on bronchioles? Respiratory bronchioles, alveolar ducts, alveolar sacs Physio1 Quiz 6 NWHSU Physio 1 Quiz 6 Question
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