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Encyclopedia > Superior cardiac nerve
Nerve: Superior cardiac nerve
Diagram of the cervical sympathetic.
Latin n. cardiacus superior
Gray's subject #216 979

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. Latin is an ancient Indo-European language originally spoken in Latium, the region immediately surrounding Rome. ... The superior cervical ganglion, the largest of the cervical ganglia, is placed opposite the second and third cervical vertebræ. It is of a reddish-gray color, and usually fusiform in shape; sometimes broad and flattened, and occasionally constricted at intervals; it is believed to be formed by the coalescence of...


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. Left Common Carotid Artery- One of three arteries that originate along the aortic arch. ... The Longus colli muscle is a muscle of the human body. ... The inferior thyroid artery passes upward, in front of the vertebral artery and Longus colli; then turns medialward behind the carotid sheath and its contents, and also behind the sympathetic trunk, the middle cervical ganglion resting upon the vessel. ... The recurrent laryngeal nerve is a branch of the vagus nerve (the tenth cranial nerve) that supplies motor function and sensation to the larynx (voice box). ...


The course of the nerves on the two sides then differ.


Right nerve

The right nerve, at the root of the neck, passes either in front of or behind the subclavian artery, and along the innominate artery to the back of the arch of the aorta, where it joins the deep part of the cardiac plexus. The subclavian artery is a major artery of the upper thorax that mainly supplies blood to the head and arms. ... The brachiocephalic artery (or trunk) is an artery of the mediastinum that supplies blood to the right arm and the head. ...


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. The vagus nerve is tenth of twelve paired cranial nerves and is the only nerve that starts in the brainstem (somewhere in the medulla oblongata) and extends all the way down past the head, right down to the abdomen. ...


Filaments from the nerve communicate with the thyroid branches from the middle cervical ganglion.


Left nerve

The left nerve, in the thorax, runs in front of the left common carotid artery and across the left side of the arch of the aorta, to the superficial part of the cardiac plexus. Left Common Carotid Artery- One of three arteries that originate along the aortic arch. ... For the embryological structure, see Aortic arches. ...


External links

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant. GPnotebook is a British medical database for general practitioners (GPs. ... The public domain comprises the body of all creative works and other knowledge—writing, artwork, music, science, inventions, and others—in which no person or organization has any proprietary interest. ... An illustration from the 1918 edition Henry Grays Anatomy of the Human Body, commonly known as Grays Anatomy, is an anatomy textbook widely regarded as a classic work on human anatomy. ...


 
 

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