Thyroid ima artery
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| Artery: Thyroid ima artery | |
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| The veins of the thyroid gland. (Thyroid ima artery not labeled, but region is visible.) | |
| Latin | arteria thyroidea ima |
| Gray's | subject #142 549 |
| Source | Brachiocephalic, others |
The thyroidea ima ascends in front of the trachea to the lower part of the thyroid gland, which it supplies.
It varies greatly in size, and appears to compensate for deficiency or absence of one of the other thyroid vessels. The thyroidea ima artery, when present, arises from the brachiocephalic trunk (innominate artery).
It occasionally arises from the aorta, the right common carotid, the subclavian or the internal thoracic artery.
This artery is present in approximately 3-10% of the population and can cause problems for physicians when attempting a tracheostomy.
[edit] 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 As such, some of the information contained within it may be outdated.
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