Normal expiration is brought on by
a. contraction of the external intercostals
b. contraction of the internal intercostals
c. contraction of the diaphragm
d. elastic recoil of inspiratory muscles
e. elastic recoil of expiratory muscles
D
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Ling, a 75-year-old grandmother, complained that her vision was becoming obscured. Upon examination by an ophthalmologist she was told she had cataracts. What are they, how do they occur, and how are they treated?
What will be an ideal response?
Computer-based training is all of the following except
A. Interactive B. Versatile in the same way behaviors exhibited in successful job performance are versatile C. Static D. A method that allows to learner to be an active contributor
The increase in muscle tension that is produced by increasing the number of active motor units is called
A) incomplete tetanus. B) complete tetanus. C) treppe. D) wave summation. E) recruitment.
One of the unhealthy effects of blood doping is to
A. increase the carbon dioxide carrying capacity of the blood. B. decrease the oxygen carrying capacity of the blood. C. decrease the blood pressure in the arteries. D. increase the viscosity of the blood. E. increase the oxygen carrying capacity of the blood.