<P> Upon leaving the medulla oblongata between the pyramid and the inferior cerebellar peduncle , the vagus nerve extends through the jugular foramen , then passes into the carotid sheath between the internal carotid artery and the internal jugular vein down to the neck , chest , and abdomen , where it contributes to the innervation of the viscera , reaching all the way to the colon . Besides giving some output to various organs , the vagus nerve comprises between 80 % and 90 % of afferent nerves mostly conveying sensory information about the state of the body 's organs to the central nervous system . The right and left vagus nerves descend from the cranial vault through the jugular foramina , penetrating the carotid sheath between the internal and external carotid arteries , then passing posterolateral to the common carotid artery . The cell bodies of visceral afferent fibers of the vagus nerve are located bilaterally in the inferior ganglion of the vagus nerve ( nodose ganglia ) . </P>
<P> Upon leaving the medulla oblongata between the pyramid and the inferior cerebellar peduncle , the vagus nerve extends through the jugular foramen , then passes into the carotid sheath between the internal carotid artery and the internal jugular vein down to the neck , chest , and abdomen , where it contributes to the innervation of the viscera , reaching all the way to the colon . Besides giving some output to various organs , the vagus nerve comprises between 80 % and 90 % of afferent nerves mostly conveying sensory information about the state of the body 's organs to the central nervous system . The right and left vagus nerves descend from the cranial vault through the jugular foramina , penetrating the carotid sheath between the internal and external carotid arteries , then passing posterolateral to the common carotid artery . The cell bodies of visceral afferent fibers of the vagus nerve are located bilaterally in the inferior ganglion of the vagus nerve ( nodose ganglia ) . </P>
where does the vagus nerve enter the abdomen
where does the vagus nerve enter the abdomen
internal jugular vein
internal jugular vein