MULTIPLE CHOICE. Choose the one alternative that best completes the statement or

Question

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the 166) 166) During muscular contractions associated with inhalation, what would happen if pressure? intrapleural pressure were be less than A) lung volume would remain unchanged B) thoracic volume increase with lung inflation C) thoracic volume increase with lung collapse 167) 167 which of the following could be true if the following pressures are being measured? transpulmonary pressure 6 mmHg intrapleural pressure 667 mmHg atmospheric pressure-670 mmHg ntral pressure 673 mmHg A) normal expiration unchanged B) lung volume would remain C) normal inspiration collapse D) thoracic volume increase with lung 168) Which the following is occurring if the following pressures are being measured? 168) of transpulmonary pressure 15 mmHg intrapleural pressure 765 mmHg atmospheric pressure 755 mmHg intrapulmonary pressure 750 mmHg B) forced inspiration A) forced expiration D tidal inspiration tidal expiration 169) In assessing a mechanical prototype to demonstrate lung function, it is suggested that 169) the final version ofsynthetic lung material will need to be easier to inflate and easier to deflate in order to be cost effective. Which will need to be true? B) less compliant and less elastic A) more compliant and more elastic D) more compliant and less elastic C) less compliant and more elastic 170 Due to acute trauma and resulting damage of the diaphragm, the will need to 170) become more active in order to aid someone during A) rectus abdominis; inspiration muscles; expiration B) and parasternal D) scalenes and pectoralis minor; inspiration

Explanation / Answer

166. Answer is B.Thoracic volume increase with lung inflation.

167. Answer is B.Thoracic volume increase with lung collapse.

168. All the options are wrong as intrapleural pressure is more than atmospheric pressure, thus the lungs will collapse.

169. Answer is A.morecompliant and more elastic.

170. Answer is D.scalenes and pectoralis minor,inspiration.

171. Answer is D.unable to find with the gven data.

172. Answer is D.netmovement of CO2 towards alveoli with net movements of H2O and O2 into the capillaries.

173. Answer is D.decreased,Henry's.

174. Answer is B.arterial PCO2 = 50mmHg.

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