Illustrated Encyclopedia of Human Anatomic Variation: Opus III: Nervous System
Ronald A. Bergman, PhD
Adel K. Afifi, MD, MS
Ryosuke Miyauchi, MD
Peer Review Status: Internally Peer Reviewed
"Fetus 7. The upper end of the right superior cervical
sympathetic ganglion was inadvertently cut off during preparation,
but its cardiac branch was preserved. This dissection provided the
only example of a link between the cervicothoracic ganglion and the
phrenic nerve. A group of vagal cardiac rami (v) are shown.
A single link with the phrenic nerve was the only connection, that was evident on the left sympathetic trunk.
Fetus 8. A distal intermediate ganglion (*) is attached by two roots to the middle right cervical cardiac nerve. The right vagus receives a thick sympathetic connection (arrow), and just below this point the vagus gives off two cardiac rami (vv).
On the left side the sympathetic trunk connects at the same level with the vagus and phrenic nerves (arrows)."
From Ellison, J.P. and TH. Williams. Sympathetic nerve pathways to the human heart, and their variations. Am. J. Anat. 124:149-162, 1969.
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