To use all functions of this page, please activate cookies in your browser.
With an accout for my.bionity.com you can always see everything at a glance – and you can configure your own website and individual newsletter.
- My watch list
- My saved searches
- My saved topics
- My newsletter
The carotid triangle (or superior carotid triangle) is a portion of the anterior triangle of the neck.
Additional recommended knowledge
Coverings and boundaries
It is bounded:
It is covered by the integument, superficial fascia, Platysma and deep fascia; ramifying in which are branches of the facial and cutaneous cervical nerves.
Its floor is formed by parts of the Thyrohyoideus, Hyoglossus, and the Constrictores pharyngis medius and inferior.
This space when dissected is seen to contain the upper part of the common carotid artery, which bifurcates opposite the upper border of the thyroid cartilage into the external and internal carotid. These vessels are somewhat concealed from view by the anterior margin of the Sternocleidomastoideus, which overlaps them.
The external and internal carotids lie side by side, the external being the more anterior of the two.
The following branches of the external carotid are also met with in this space:
The veins met with are:
...all of which end in the internal jugular.
The nerves in this space are the following.
The hypoglossal nerve crosses both the internal and external carotids above, curving around the origin of the occipital artery.
On the lateral side of the vessels, the accessory nerve runs for a short distance before it pierces the Sternocleidomastoideus; and on the medial side of the external carotid, just below the hyoid bone, may be seen the internal branch of the superior laryngeal nerve; and, still more inferiorly, the external branch of the same nerve.
The upper portion of the larynx and lower portion of the pharynx are also found in the front part of this space.
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 As such, some of the information contained herein may be outdated.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.
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Carotid_triangle". A list of authors is available in Wikipedia.|