| Artery: Superior thyroid artery | |
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| Superficial dissection of the right side of the neck, showing the carotid and subclavian arteries. | |
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| The fascia and middle thyroid veins. (Superior thyroid artery labeled at upper right.) | |
| Latin | arteria thyreoidea superior |
| Gray's | subject #144 552 |
| Supplies | thyroid |
| Source | external carotid artery |
| Branches | Hyoid (infrahyoid) artery Sternocleidomastoid artery Superior laryngeal artery Cricothyroid artery |
| Drain | superior thyroid vein |
The superior thyroid artery arises from the external carotid artery just below the level of the greater cornu of the hyoid bone and ends in the thyroid gland.
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Relations
From its origin under the anterior border of the Sternocleidomastoideus it runs upward and forward for a short distance in the carotid triangle, where it is covered by the skin, Platysma, and fascia; it then arches downward beneath the Omohyoideus, Sternohyoideus, and Sternothyreoideus.
To its medial side are the Constrictor pharyngis inferior and the external branch of the superior laryngeal nerve.
Branches
It distributes twigs to the adjacent muscles, and numerous branches to the thyroid gland, anastomosing with its fellow of the opposite side, and with the inferior thyroid arteries.
The branches to the gland are generally two in number;
Besides the arteries distributed to the muscles and to the thyroid gland, the branches of the superior thyroid are:[1]
See also
Additional images
 Diagram showing the origins of the main branches of the carotid arteries. |
 The internal carotid and vertebral arteries. Right side. (Superior thyroid visible at center.) |
 The thyroid gland and its relations. |
 Side of neck, showing chief surface markings. |
References
External links
- SUNY Figs 26:02-02
- Superior+thyroid+artery at eMedicine Dictionary
- lesson5 at The Anatomy Lesson by Wesley Norman (Georgetown University) (antthyroidgland)
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 As such, some of the information contained herein may be outdated.
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