Which of the following are accessory muscles of inspiration?
I. External intercostals
II. Scalenus muscles
III. Transverse abdominus
IV. Trapezius muscles
a. I and II only c. I, II, and IV only
b. I, II, III, and IV d. I, III, and IV only
c. I, II, and IV only
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A lateral cervicothoracic projection (Twining method) demonstrates closed intervertebral disk spaces and distorted vertebral bodies. How was the patient mispositioned for such a projection to be obtained?
a. The midcoronal plane was not aligned parallel with the IR. b. The arm situated farther from the IR was not depressed. c. The patient was rotated anteriorly. d. The midsagittal plane was not aligned parallel with the IR.
Which of the following refers to how the ventilator uses a mathematical model to alter the set points to achieve a target goal?
A. set point B. servo C. adaptive D. optimal