INBDE (Integrated National Board Dental Examination) Practice Exam

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What is the small cluster of chemoreceptors located at the bifurcation of the common carotid, regulating oxygen?

  1. Medulla Oblongata

  2. Carotid Sinus

  3. Carotid Body

  4. Aortic Body

The correct answer is: Carotid Body

The medulla oblongata is a part of the brainstem and is not located at the bifurcation of the common carotid. The carotid sinus is a dilation of the common carotid artery and does not contain chemoreceptors. The aortic body is a similar structure as the carotid body but is located at the aortic arch, not at the bifurcation of the common carotid.

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