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Question 6

Can you double check my answers? I do not know if I am on the right

path.

Which of the following statements is NOT correct?


The lungs surround the mediastinum.


Air normally fills the pleural cavity.


The visceral pleura covers the lungs.


The parietal pleura lines the thoracic cavity.


The parietal and visceral pleura are separated by the pleural cavity.

Question 16


In external respiration __________, while __________ occurs in internal respiration.

oxygen moves from the alveoli to the pulmonary capillaries; carbon dioxide moves from the pulmonary capillaries to the alveoli.


oxygen moves from the alveoli to the pulmonary capillaries; oxygen moves from the pulmonary capillaries to the alveoli.


carbon dioxide moves from the alveoli to the pulmonary capillaries; carbon dioxide moves from the pulmonary capillaries to the alveoli.


oxygen moves from the alveoli to the pulmonary capillaries; oxygen moves from the tissues to the systemic capillaries.


oxygen moves from the alveoli to the pulmonary capillaries; carbon dioxide moves from the tissues to the systemic capillaries.

Question 19


All of the following statements are True EXCEPT


2,3-bisphosphoglycerate decreases the affinity of hemoglobin for oxygen.


hemoglobin will bind more oxygen when the partial pressure is low than when the partial pressure is high.


oxygen dissociates more readily from hemoglobin as pH decreases.


increased partial pressure of carbon dioxide increases oxygen dissociation from hemoglobin.


decreasing temperature will cause a shift to the left in the hemoglobin saturation curve.


Question 28

The internal structures of the external nose serve which of the following functions?

1. warming, moistening, and filtering incoming air

2. creating resonance

3. increasing gas exchange


1 only


2 only


3 only


1 and 2


1, 2, and 3


Question 52

What is the difference between the conducting zone and the respiratory zone of the respiratory system?




The conducting zone moves oxygen into the cells and the respiratory zone takes carbon dioxide away from the cells.


The conducting zone moves oxygen into the bloodstream and the respiratory zone takes carbon dioxide away from the bloodstream.


The conducting zone exchanges gases between the lungs and the alveoli and the respiratory zone is a series of cavities and tubes that move air to the conducting zone.


The conducting zone is a series of cavities and tubes that move air to the respiratory zone where gases exchange with the bloodstream.

Question 51

The respiratory system is best described as




The system which delivers oxygen to the bloodstream and takes away carbon dioxide.


The system which provides the ability to burn all nutrients in the cells.


The system which removes wastes from cells and exhales them from the body.


The system which delivers oxygen directly to cells and takes away carbon dioxide.

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