The PO2 of alveolar air is __________Blank mmHg. The blood entering the pulmonary capillaries has a PO2 of __________Blank mmHg, and the blood leaving the pulmonary capillaries has a PO2 of __________Blank mmHg.Multiple Choice104; 40; 10440; 104; 104104; 104; 40

Gas exchange between air in the alveoli and blood in pulmonary capillaries is called Blank______.Multiple choice question.cellular respirationinternal respirationexternal respiration

A PO2 of 40mmHg in venous blood would normally: W) result in almost fully deoxygenated haemoglobin.X) be found in blood in the pulmonary arteries.Y) indicate that tissues have "extracted" no oxygen.Z) be found in systemic venous blood.Question 18Select one:a.if only W, X and Y are correct.b.if only W and Y are correct.c.if only X and Z are correct.d.if only Z is correct.e.if all are correct

Multiple Choice QuestionCarbon dioxide diffuses from the ______ to the ______ during external respiration.Multiple choice question.blood; alveolar airalveolar air; blood

Gas exchange between the inspired air and the blood occurs at the ______ of the lungs.Multiple choice question.alveolirespiratory bronchiolestracheaprimary bronchi

The saturation of hemoglobin is __________Blank% at the arterial PO2 of 95 mmHg, and is __________Blank% at the venous PO2 of 40 mmHg.Multiple Choice50; 95100; 7550; 25