Thyroid ima artery

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Thyroid ima artery
The veins of the thyroid gland (thyroid ima artery not labeled, but region is visible.)
Latin Arteria thyreoidea ima
Source Brachiocephalic, others
Supplies Thyroid gland
Gray's p.549
TA A12.2.04.005
FMA 3936
Anatomical terminology

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 in the public domain from the 20th edition of Gray's Anatomy (1918)

External links[edit]