BIO 251 - FINAL PART 3. QUESTIONS AND ANSWERS. COMPLETE GUIDE.

BIO 251 FINAL PT 3



Question 51 of 75
1.5/ 1.5 Points
Under normal circumstances, bronchoconstriction is caused by ________________ and
bronchodilation is caused by ________________.





A. Sympathetic nervous system; parasympathetic nervous system





B. Parasympathetic nervous system; sympathetic nervous system





C. Voluntary control; involuntary control





D. Involuntary control; voluntary control





E. None of the above



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Question 52 of 75
1.5/ 1.5 Points
Which of the following are ways CO2 is transported in the blood?





, A. As bicarbonate (HCO3–)





B. As dissolved C02 in plasma





C. As carbaminohemoglobin





D. All of the above





E. None of the above



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Question 53 of 75
1.5/ 1.5 Points
At a birthday party, a teen decides to inhale some of the helium from a nearby balloon using his
mouth. Before the helium gas reaches his right and left lungs, through which order of structures
will it flow?





A. Oral cavity to the trachea to the trachea to the nasopharynx to the right and left main
bronchi





B. Oral cavity to the oropharynx to the trachea to the right and left main bronchi

, 

C. Oral cavity to the nasopharynx to the trachea to the right and left main bronchi





D. Oral cavity to the right and left main bronchi to the trachea to the oropharynx





E. Oral cavity to the trachea to the larynx to the right and left main bronchi



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Question 54 of 75
1.5/ 1.5 Points
____________ is the maximum amount of air one can exhale by force after a normal expiration.





A. Vital capacity





B. Expiratory reserve volume





C. Tidal volume



