Which of the following is NOT a factor that affects pulmonary ventilation?
a) Lung compliance
b) Suface tension of alveolar fluid
c) Elastic recoil of the chest wall and lungs
d) Airway resistance
e) All of these are factors that affect pulmonary ventilation
e
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Diffusion results from
a. ATP-driven processes. b. use of ion gradients. c. inherent kinetic energy of matter. d. selective permeability. e. loss of positive charge.
What is the primary role of the carbonic acid-bicarbonate buffer system?
A) buffer the pH of the ICF B) contribute to the regulation of pH in both the ECF and ICF C) provide extensive buffering capability in the ICF of active cells D) prevent pH changes caused by organic (metabolic) acids E) provide the use of amino acid side groups in response to pH changes
Which imaging technique is used to diagnose osteoporosis?
A. Dual-energy X-ray absorptiometry (DEXA) B. Magnetic resonance imaging (MRI) C. Positron emission tomography (PET) D. Computed tomography (CT) E. Ultrasound
The nail grows from the nail ____
a. root b. bed c. body d. lunula