Post Utme Achievers University 2018 Biology Question 6

Practice objective / multiple choice question 6 from the 2018 Post Utme Achievers University Biology examination.

Post Utme Achievers University 2018 Biology Objective / Multiple Choice
Question 6 POST_UTME_ACHIEVERS_UNIVERSITY • 2018 • BIOLOGY • objective

The process of gas exchange in the lungs is facilitated by the movement of the diaphragm and the rib cage. Which of the following best describes the mechanism by which the diaphragm contributes to this process?

Answer Options

Correct Answer A. Inhalation of air into the lungs causes the diaphragm to contract and move downward, increa\sing the volume of the thoracic cavity.
B. Exhalation of air from the lungs causes the diaphragm to relax and move upward, decrea\sing the volume of the thoracic cavity.
C. The diaphragm plays no role in gas exchange in the lungs.
D. The diaphragm is responsible for regulating the temperature of the blood in the lungs.
Correct Answer
A
Correct Option:
Inhalation of air into the lungs causes the diaphragm to contract and move downward, increa\sing the volume of the thoracic cavity.

About This Question

This is Post Utme Achievers University 2018 Biology Question 6. It is one of the objective questions from the 2018 Post Utme Achievers University Biology examination.

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