# The arterial supply of trachea is by the:
A. Bronchial artery
B. Tracheal artery
C. Inferior thyroid artery
D. Superior thyroid artery
The correct answer is C. Inferior thyroid artery.
Inferior thyroid artery is a branch of thyrocervical trunk, which arises from the subclavian artery. Its terminal part is related to recurrent laryngeal nerve. Apart from trachea, it also supplies lower two thirds of thyroid lobe and lower half of the isthmus, parathyroid, thymus, larynx, pharynx, and the surrounding muscles.
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