Question 6 of 221
The anatomy of the airway consists of the upper and the lower airway. The upper airway starts at the mouth and Nares and ends at the _________?
Correct Answer: C

Question 7 of 221
The tongue often is a source of airway obstruction, it falls back and occludes the _________?
Correct Answer: D

Question 8 of 221
The lower airway ends at the Alveoli, gas exchange occurs at this level. Oxygen moves to the hemoglobin by passing through a semipermible membrane. Name this membrane.
Correct Answer: A

Question 9 of 221
To create negative pressure in the thorax (chest cavity) the diaphragm contracts and moves _____________ which expands the volume of the thorax allowing air to rush into the lungs.
Correct Answer: C

Question 10 of 221
When the diaphragm relaxes it regains it's domed shape causing an increase in thoracic pressure forcing air out of the lungs. To have air forced out of the lungs the pressure in the thorax must rise above _______________ pressure?
Correct Answer: B