Anat Lec 2 resp system chap 25 book questions
During expiration
decreased alveolar volume causes increased alveolar pressure.
Inspiration begins as..
diaphragm relaxes
Oxygen-rich blood is carried through pulmonary arteries from the lungs to the heart.
false
The alveoli never attain equal pressure with the ambient (outside) air.
false
The pleural membranes function like a fluid filled balloon that completely surrounds the heart.
false
venous blood
goes to the hear
The result of the process of inspiration is...
increased alveolar volume causes decreased alveolar pressure.
arterial blood
leaves the heart
The outermost layer of the pleural membrane is the...
parietal pleura
The direction of gas movement is determined by
partial pressure differences
The fluid filled area between the pleural layers is the...
pleural cavity
As the volume in the alveoli increases, the pressure decreases.
true
Oxygen-poor blood is carried through systemic veins from the body tissues back to the heart.
true
PO2 in blood is greater than PO2 in tissues ; PCO2 in blood is less than PCO2 in tissues
true
PO2 in lung is greater than PO2 in blood ; PCO2 in lung is less than PCO2 in blood
true
The pleural membranes completely surround the each lung. A) True
true
The layer of the pleural membrane that is attached to the surface of the lung is the...
visceral pleura
