Which of the following is NOT an aging effect on the respiratory system?
A. Vital capacity increases
B. Respiratory diseases are more prevalent
C. Mucociliary escalator is less efficient
D. Gas exchange is less efficient
Answer: A
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Based on its name, which of the following best describes characteristics of the biceps femoris muscle?
a) has two insertions and found in lower leg b) has two bellies and found in the upper leg c) has two origins and found in the upper leg d) has two origins and found in the upper arm e) has two insertions and found in the upper leg
What type of articulation occurs between the bodies of adjacent vertebrae?
A. cartilaginous B. non-axial gliding C. hinge D. condyloid
Which of the following statements is false?
A) A neuron cell membrane is very permeable to K+. B) Na+ is 40 times as concentrated in the ICF as in the ECF. C) The Na+/K+ pump removes 3 Na+ from the cell for every 2 K+ it pumps into the cell. D) The unequal distribution of ions across the cell membrane produces the membrane potential.
Which one of the following is NOT a feature of chronic obstructive pulmonary disease (COPD)?
A) Most patients have a genetic predisposition to COPD. B) Dyspnea becomes progressively more severe. C) Frequent pulmonary infections are common. D) Most COPD victims are hypoxic. E) Most patients have a history of smoking.