CH 22 Word Scramble
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| Question | Answer |
| 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 |
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