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CH 22

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QuestionAnswer
During inhalation, the diaphragm and rib muscles contract.
From which structures do oxygen molecules move from the lungs to the blood? Aveoli
Which statement is correct? In the blood, oxygen is bound to hemoglobin, a protein found in red blood cells.
After blood becomes oxygenated, it returns to the heart, and is then pumped to body cells.
Hemoglobin is a protein that can bind four molecules of oxygen.
Which of the following pressures must remain negative to prevent lung collapse? intrapleural pressure
__________ pressure, the difference between the intrapulmonary and intrapleural pressures, prevents the lungs from collapsing. Transpulmonary
what is the total volume of exchangeable air for a normal male The total volume of exchangeable air (vital capacity) for a normal male is the amount of air that can be drawn into the lungs after a forced exhalation
Which volumes are combined to provide the inspiratory capacity? tidal volume (TV) and inspiratory reserve volume (IRV)
Which of the following findings consistently matches pulmonary function with problems with ventilation? A person with a decreased FVC and a normal FEV1 has a restrictive disorder.
Which of the following would induce the loss of oxygen from the hemoglobin and the blood? a drop in blood pH
What is the most common method of carbon dioxide transport? as bicarbonate ions in the plasma
Which of the following best describes the chloride shift as seen in the figure? Chloride rushes into RBCs to counterbalance the outflow of bicarbonate.
Which form of CO2transport accounts for the least amount of CO2 transported in blood? dissolved in plasma
Which of the following is the primary factor in oxygen's attachment to, or release from, hemoglobin? partial pressure of oxygen
What is the primary form in which carbon dioxide is carried in blood? as a bicarbonate ion in plasma
Your patient has been transported to the emergency department by EMS after a motor vehicle accident with an endotracheal tube in place. You note that his breath sounds are louder on the right side. You are alerted to which of the following situations? Pneumothorax, improper endotracheal tube placement, and blood in the pleural space (hemothorax) can all cause asymmetric breath sounds.
Which of the following types of drugs would NOT be appropriate for a patient with chronic asthma? A cough suppressant, such as dextromethorphan
Your patient has several cracked ribs from a car accident, which of these would you expect from his or her blood gases? Elevated PCO2 and decreased pH
this structure prevents food from entering the airway epiglottis
all of the following are part of the conduction zone except the respiratory bronchioles
surfactant decreases the ___________ in the alveoli surface tension
the amount of air the lungs after forced expiration inspiratory reserve volume
the pressure exerted by each type of gas in a gas mixture is the _____________ of that gas Partial pressure
the rate of oxygen diffusion across the respiratory membrane depends upon all of the following except partial pressure of carbon dioxide in the blood
low partial pressure of oxygen and high partial pressure of carbon dioxide in the alveoli will cause constriction of pulmonary capillaries and dilation of bronchioles
the majority of carbon dioxide is transported as bicarbonate ions
which of the following will increase hemoglobin's affinity for oxygen? The presence of some O2 already bound to the hemoglobin
oxygen and carbon dioxide are exchanged in the lungs and through all cell membranes by diffusion
Created by: oompa loopa
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