All of the following statements are true EXCEPT:
1. Elevating the ribs decreases the size of thethorax
2. when the diaphragm relaxes, it takes on a roundeddome - like shape
3. changes in the size of the thorax bring aboutinhalation and exhalation
4. When the diaphragm contracts, it pulls the floor ofthe thoracic cavity inferiorly
2. why do you think mucus production is especiallyimportant in the olfactory epithelium?
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