do the muscles of inhalation increase or decrease alveolar pressure? do the muscles of exhalation increase...
Homework Answers
Muscles of inhalation. During quiet breathing the predominant muscle of respiration is the diaphragm.As if contracts pleural pressure drops,which lowers the alveolar pressure and draws jn air down the pressure gradient from mouth to alveoli.muscles of inhalation increase alveolar pressure.
Muscles of exhalation:muscles of exhalation decrese alveolar pressure.
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the muscles of inhalation increase or decrease alveolar pressure?
do the muscles of exhalation increase...
1. Which of the following is NOT a component of the respiratory membrane? a. alveolar basement...
1. Which of the following is NOT a component of the respiratory membrane? a. alveolar basement membrane b. alveolar wall epithelium c. interstitial fluid d. capillary endothelium 2. Which of the following is NOT a correct match of normal (quiet) breathing phase and normal muscle movements. a. inhalation: diaphragm contracts b. exhalation: diaphragm relaxes c. exhalation: external intercostals relax d. inhalation: sternocleidomastoid contracts 3. In terms of Boyle's gas law, which of the following is a correctly matched explanation for...
After exhalation, human alveoli have an average radius of approximately 0.05 mm. When inflated by inhalation,...
After exhalation, human alveoli have an average radius of approximately 0.05 mm. When inflated by inhalation, the radius increases to about 0.10 mm. The normal mucous tissue fluid surrounding the alveoli has a nominal surface tension of about 50 dynes/cm. The presence of the natural surfactant decreases this to about 3.3 dynes/cm (a factor of 15!). Note that the lungs are inflating by applying a negative pressure to body cavity around them, so the signs of your pressure changes might...
QUESTION 16 Inhalation of a poison causes: aspiration absorption by the trachea. absorption through the alveolar-cap...
QUESTION 16 Inhalation of a poison causes: aspiration absorption by the trachea. absorption through the alveolar-capillary membrane. increase in secretions. QUESTION 17 Inhaled toxins cause damage and edema in the lungs are eliminated by first-round metabolism are immediately absorbed into the bloodstream permeate the blood-brain barrier more quickly
Atmospheric pressure = 0 ㎝ H20 Chest wall. → A veoli/Alveolar pressure-? cm H20 Pleural space/...
Atmospheric pressure = 0 ㎝ H20 Chest wall. → A veoli/Alveolar pressure-? cm H20 Pleural space/ pressure =? cm H2O Diaphragm 1. What is the 2. What is the pleural space/pressure in a patient that is presenting at rest (between breaths)? e Alveoli/Alveolar Pressure in a patient that is presenting at rest (between breaths)? 3. What is the pleural spacel/pressure in a patient as they begin inspiration (diaphragm and intercostal muscles contract)
Part II - Define the terms listed below. Inhalation Exhalation Inspiratory reserve volume Expiratory reserve volume...
Part II - Define the terms listed below. Inhalation Exhalation Inspiratory reserve volume Expiratory reserve volume Vital capacity Spirometer Forced expiratory volume Respiratory rate Hyperventilation Hypoxia Explain what a peak flow measures. Rales Rhonchi Stridor Pulse Oximetry
1. Use Boyle’s law and the anatomy of a mammal to explain how inhalation and exhalation...
1. Use Boyle’s law and the anatomy of a mammal to explain how inhalation and exhalation occurs. 2. What is the difference between external gills and internal gills? What are the advantages/disadvantages of each? 3. Structure determines function: what features are common in different respiratory organs, and how do these features help with gas exchange? 4. What challenges to gas exchange do aquatic animals face? Terrestrial? 5. What is a “countercurrent exchange system”? Explain its role in fish gills. 6.Amphibians...
When albuterol inhalation significantly increases the FVC: Answers A-D A The residual volume will increase B...
When albuterol inhalation significantly increases the FVC: Answers A-D A The residual volume will increase B Restrictive/interstitial disorder is likely C Asthma is the likely diagnosis D Alveolar compliance has increased
A. . Hyperpnea would result in ___________________________ within the blood. an increase in both Pressure (oxygen)...
A. . Hyperpnea would result in ___________________________ within the blood. an increase in both Pressure (oxygen) and Pressure (carbon dioxide) 2. Decreased Pressure (carbon dioxide) results in an increase in blood pH levels. Both of these conditions result in a shift of the oxygen-hemoglobin dissociation curve to the ______________________. This shift _______________ hemoglobin’s affinity for oxygen. select 3. Increased levels of 2,3 BPG occur in response to decreased blood pH levels. With all other variables unchanged, an increased concentration of...
True/False Indicate whether the statement is true or false. 1. Exhalation is passive 2. An increase...
True/False Indicate whether the statement is true or false. 1. Exhalation is passive 2. An increase in PEEP will increase expiratory resistance. 3. The most important factor affecting resistance is the diameter of the airways. 4. In pressure control ventilation (PCV), the pressure waveform is affected by changes in lung characteristics and pateint flow demand. 5. In pressure support ventilation (PSV), every breath is patient triggered.
Question 40 1 pts During an inspiratory effort... The intrapleural pressure increases The abdominal muscles contract...
Question 40 1 pts During an inspiratory effort... The intrapleural pressure increases The abdominal muscles contract The elastic recoil exceeds Plung The alveolar pressure drops below atmospheric pressure The external intercostal muscles relax Question 39 1 pts What statement regarding reflexes is FALSE? Some reflexive responses are not consciously perceived The medulla oblongata can serve as the integrator in a reflex loop Many reflexes involuntarily controlled All reflexes are involved in homeostasis
QUESTION 16 Inhalation of a poison causes: aspiration absorption by the trachea. absorption through the alveolar-capillary membrane. increase in secretions. QUESTION 17 Inhaled toxins cause damage and edema in the lungs are eliminated by first-round metabolism are immediately absorbed into the bloodstream permeate the blood-brain barrier more quickly
Atmospheric pressure = 0 ㎝ H20 Chest wall. → A veoli/Alveolar pressure-? cm H20 Pleural space/ pressure =? cm H2O Diaphragm 1. What is the 2. What is the pleural space/pressure in a patient that is presenting at rest (between breaths)? e Alveoli/Alveolar Pressure in a patient that is presenting at rest (between breaths)? 3. What is the pleural spacel/pressure in a patient as they begin inspiration (diaphragm and intercostal muscles contract)
When albuterol inhalation significantly increases the FVC: Answers A-D A The residual volume will increase B Restrictive/interstitial disorder is likely C Asthma is the likely diagnosis D Alveolar compliance has increased
True/False Indicate whether the statement is true or false. 1. Exhalation is passive 2. An increase in PEEP will increase expiratory resistance. 3. The most important factor affecting resistance is the diameter of the airways. 4. In pressure control ventilation (PCV), the pressure waveform is affected by changes in lung characteristics and pateint flow demand. 5. In pressure support ventilation (PSV), every breath is patient triggered.
Question 40 1 pts During an inspiratory effort... The intrapleural pressure increases The abdominal muscles contract The elastic recoil exceeds Plung The alveolar pressure drops below atmospheric pressure The external intercostal muscles relax Question 39 1 pts What statement regarding reflexes is FALSE? Some reflexive responses are not consciously perceived The medulla oblongata can serve as the integrator in a reflex loop Many reflexes involuntarily controlled All reflexes are involved in homeostasis
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