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Exam Title : The Respiratory System


Number Of Question : 10
Question #1: All of the following statements about bronchial circulation are true, Except
Contribute 2% of systemic circulation
Contribute to gaseous exchange
Cause venous admixing of blood
Provide nutritive function to lung
Question #2: A man connected to a body plethysmograph for estimation of FRC inspires against a closed glottis. Which of the following statements is true
The pressure in both the lungs and the box increases
The pressure in both the lunges and the box decrease
The pressure in the lungs decreases, But that in the box increases
The pressure in the lungs increases, but that in the box decreases
Question #3: The additional amount of oxygen transported in 100 ml of blood in a subject breathing 100% oxygen under hyperbaric conditions of 4 ATA compared to normobaric condition (1 ATA) will be
9 ml
6 ml
3 ml
0.3 ml
Question #4: Amount of dissolved oxygen transported in 100 ml of plasma in a subject breathing 100% oxygen at 4 ATA(Atmospheric pressure) will be
9 ml
6 ml
3 ml
0.3 ml
Question #5: Small airways have laminar air flow because
Reynold's number >2000
Very small diameter
Extremely low velocity
Low cross sectional area