Prepare for the Individual Readiness Assurance Test (iRAT) 4 in Head and Neck. Study with multiple-choice questions, comprehensive explanations, and detailed flashcards. Maximize your chances of success with thorough preparation and insightful study resources.

Multiple Choice

Which arteries supply the thyroid gland?

Thyroid blood supply comes from two main arteries: the superior thyroid artery and the inferior thyroid artery. The superior thyroid artery is the first anterior branch of the external carotid artery and runs toward the upper pole of the thyroid, often accompanied by the superior laryngeal nerve. The inferior thyroid artery usually arises from the thyrocervical trunk of the subclavian artery and travels with the recurrent laryngeal nerve to reach the lower pole. Together, they create a rich vascular network around the thyroid, with a possible contribution from a thyroid ima artery in some people. The other arteries listed do not supply the thyroid: renal arteries go to the kidneys, facial artery supplies facial structures, and occipital artery supplies the posterior scalp.

Thyroid blood supply comes from two main arteries: the superior thyroid artery and the inferior thyroid artery. The superior thyroid artery is the first anterior branch of the external carotid artery and runs toward the upper pole of the thyroid, often accompanied by the superior laryngeal nerve. The inferior thyroid artery usually arises from the thyrocervical trunk of the subclavian artery and travels with the recurrent laryngeal nerve to reach the lower pole. Together, they create a rich vascular network around the thyroid, with a possible contribution from a thyroid ima artery in some people.

The other arteries listed do not supply the thyroid: renal arteries go to the kidneys, facial artery supplies facial structures, and occipital artery supplies the posterior scalp.