Superior cardiac nerve
Name = PAGENAME
Latin = nervus cardiacus cervicalis superior
GraySubject = 216
GrayPage = 979
Caption = Diagram of the cervical sympathetic. (Superior cardiac nerve labeled at center right.)
superior cervical ganglion
DorlandsPre = n_05
DorlandsSuf = 12565306
The superior cardiac nerve arises by two or more branches from the
superior cervical ganglion, and occasionally receives a filament from the trunk between the first and second cervical ganglia.
It runs down the neck behind the
common carotid artery, and in front of the Longus colli muscle; and crosses in front of the inferior thyroid artery, and recurrent nerve.
The course of the nerves on the two sides then differ.
The right nerve, at the root of the neck, passes either in front of or behind the
subclavian artery, and along the innominate arteryto the back of the arch of the aorta, where it joins the deep part of the cardiac plexus.
It is connected with other branches of the sympathetic; about the middle of the neck it receives filaments from the external laryngeal nerve; lower down, one or two twigs from the
vagus; and as it enters the thorax it is joined by a filament from the recurrent nerve.
Filaments from the nerve communicate with the thyroid branches from the
middle cervical ganglion.
The left nerve, in the thorax, runs in front of the left
common carotid arteryand across the left side of the arch of the aorta, to the superficial part of the cardiac plexus.
Wikimedia Foundation. 2010.
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