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jrodri8 jrodri8
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13 years ago
1. WHat additional skeletal muscles are utilized in an ERV activity? (I believe the answer is the following  this but not sure if i am correct)
--external intercostal muscles (located between the ribs) and the diaphragm (a sheet of muscle located between the thoracic & abdominal cavities).

2. Explain why results from the experiment suggest that there is an obstructive, rather than a restrictive, lung problem?

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wrote...
13 years ago
2. Explain why results from the experiment suggest that there is an obstructive, rather than a restrictive, lung problem?

The FEV1 (%) decreased proportionally as the radius decreased which is characteristic of an obstructive pulmonary problem.
Biology!
wrote...
13 years ago
What additional skeletal muscles are utilized in an ERV activity?

In forced expiration, abdominal-wall muscles and the internal intercostal muscles contract.

Hope this helps Slight Smile
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