Practice Quiz

NREMT Advanced EMT Practice Test #4

Category - EMT-I/99

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Baroreceptors monitor blood pressure. They are specialized sensors. Where are they located?
  1. Pupillary
  2. Aortic Arch
  3. Carotid Bodies
  4. Both B and C
Explanation
Answer - D - Baroreceptors are specialized sensors located in the aortic arch and carotid bodies. These unique sensors monitor blood pressure in these arterial blood vessels and feed this information to the vasomotor center in the medulla. Peripheral chemoreceptors are sensors that monitor oxygen levels and central chemoreceptors are sensors that monitor hydrogen helves and are located on the medulla. However, there are no specific receptors for monitoring the heart rate.
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