MCQOPTIONS
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				| 1. | 
                                    Changes in blood concentration of glucose, oxygen and hydrogen ions are detected by __________ | 
                            
| A. | Baroreceptors | 
| B. | Chemoreceptors | 
| C. | Nociceptors | 
| D. | Proprioceptors | 
| Answer» C. Nociceptors | |