7 Questions
What is responsible for 75% of the air that enters the lungs?
Diaphragmatic contraction
Which muscles elevate the ribs during breathing?
External intercostals
What is the primary mechanism for forced expiration?
Contraction of expiratory muscles
During inspiration, what occurs when the external intercostals contract?
Increase in chest cavity dimensions
How is oxygen primarily transported in the blood?
Bound to hemoglobin
In what form is 90% of carbon dioxide carried in the plasma?
As bicarbonate ions
Which group of muscles contract during forced inspiration?
Accessory muscles of expiration
Review important topics in respiratory physiology for physical therapy with a focus on the structures, functional organization, steps of respiration, pressures involved in ventilation, breathing phases, mechanics of pulmonary ventilation, gas exchange, and gas transport. This quiz covers key concepts taught by Dr. Dalia Abd-Elhalim, Assistant Professor of Physiology at the Faculty of Medicine, Suez Canal University.
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