Thyroid ima artery

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Artery: Thyroid ima artery
The veins of the thyroid gland (thyroid ima artery not labeled, but region is visible.)
Latin Arteria thyreoidea ima
Gray's p.549
Supplies Thyroid gland
Source Brachiocephalic, others

The thyroidea ima artery arises from the brachiocephalic trunk and ascends in front of the trachea to the lower part of the thyroid gland, which it supplies. It is only present in approximately 3-10% of the population. It varies greatly in size, and appears to compensate for deficiency or absence of one of the other thyroid vessels. Occasionally, it arises from the aorta, the right common carotid, the subclavian or the internal thoracic artery.

Clinical significance[edit]

Due to its location and infrequent presence, it can cause problems for physicians performing a tracheostomy or a thyroidectomy.


This article incorporates text from a public domain edition of Gray's Anatomy.

External links[edit]