Vasomotor center

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The vasomotor center (VMC) is a portion of the medulla oblongata[1] that regulates blood pressure and other homeostatic processes. Upon increase in carbon dioxide level at central chemoreceptors, it stimulates the sympathetic system to constrict vessels. This is opposite to carbon dioxide in tissues causing vasodilatation, especially in the brain.[2] Cranial nerves IX (Glossopharyngeal nerve) and X Vagus nerve both feed into the vasomotor centre and are themselves involved in the regulation of blood pressure.

See also[edit]


  1. ^ "Blood Vessels". Retrieved 2008-10-06. 
  2. ^ "Bionic blood pressure device being developed at Vanderbilt". Retrieved 2008-10-06.