The main neural control central coordinating ventilation during quiet breathing is the - ANSWERDorsal Respiratory Group
What helps to keep the expansion forces of the chest wall and the contracting forces of the alveoli/lungs linked so that the lung does not collapse and the chest does not expan...
Bio 669 - Exam 3 Pulmonary &
Renal Questions & Answers
100% Correct
The main neural control central coordinating ventilation during quiet breathing is the -
ANSWERDorsal Respiratory Group
What helps to keep the expansion forces of the chest wall and the contracting forces of the
alveoli/lungs linked so that the lung does not collapse and the chest does not expand further: -
ANSWERThe negative pressure of the pleural cavity
In response to low alveolar PO2 - ANSWERVascular smooth muscle controlling flow that alveolus will
constrict
What happens to the functional residual capacity in COPD - ANSWERIt increases resetting the TV to a
higher volume
Vasoconstriction of a pulmonary artery serving the area of the lung will have what effect? -
ANSWERDecreased blood flow to that area
How is most of the CO2 transported in the blood? - ANSWERAs bicarbonate that can be converted
back to CO2
Which of the following is true regarding acute respiratory distress syndrome? - ANSWERIt can cause
severe pulmonary edema
Which of the following statements regarding asthma is incorrect? - ANSWERAsthma is associated
with pulse paradoxical which is a rise in systolic pressure of greater than 10 mmHg during inspiration
The experience of breathing discomfort, shortness of breath, or air hunger while lying in flat in
patients with heart failure is termed? - ANSWEROrthopnea
, Widespread pulmonary fibrosis, edema and subsequent hypoxemia will most likely result in:
A. Reduced thickness in the myocardium
B. Bradycardia in an otherwise healthy person
C. Pulmonary hypertension
D. Hypercapnia - ANSWERC. Pulmonary hypertension
Which part of the following is not a part of Virchows Triad in the development of thrombi and
emboli? - ANSWERImmune system activation
The space between the lungs that includes the heart, esophagus, and great vessels is termed the? -
ANSWERMediastinum
Acidosis will ______ the affinity of oxygen to hemoglobin and thus would be considered a _________
shift in the oxyhemoglobin disassociation curve - ANSWERdecrease, right
Someone with diminished ventilation to their aveoli as a result of respiratory disease is most likely to
present with: - ANSWERALL of the Above: Pulmonary HTN, Development of right sided heart failure
over time if left untreated, Jugular venous distention
How is the alveolar volume measured?
A. Measuring tidal volume and breathing rate over the course of a minute.
B. Measuring the total amount of air that can be held in the lungs.
C. Subtracting the residual volume from the total lung capacity.
D. Indirectly by measuring PaO2 or PaCO2 - ANSWERD. Indirectly by measuring PaO2 or PaCO2
Edema of the alveolar membrane is a problem because:
A. Indicates cancerous changes
B. Restricts perfusion of the alveolus
C. It interferes with normal gas exchange
D. It decreases air resistance in that area - ANSWERC. It interferes with normal gas exchange
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