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| Q. |
Central respiratory chemoreceptors: |
| A. | are located in the medulla near exit of cranial nerve X, XI |
| B. | respond directly to changes in external PCO2 |
| C. | respond directly to changes in arterial PO2 |
| D. | are located on dorsal surface of medulla |
| E. | respond to pH of CSF |
| Answer» E. respond to pH of CSF | |
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