Drainage from the middle thyroid vein empties into the _______ vein?
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Answer: C. Internal jugular
Explanation
The middle thyroid vein drains the thyroid gland directly into the jugular. This short vascular channel bridges the thyroid gland and the main vein. Venous blood flows continuously through this vessel into the internal jugular system. The thyroid gland is a highly vascular endocrine organ in the neck. Venous drainage occurs through superior middle and inferior thyroid vein pairs. The internal jugular vein is a major blood vessel draining the head.
Surgeons must ligate these specific thyroid veins during complex neck dissections. Accidental laceration of these vessels causes significant hemorrhage during thyroid surgery. Understanding neck venous anatomy prevents dangerous complications during clinical operations. The external jugular vein typically drains superficial regions of the head safely. The anterior jugular vein runs down the midline before draining inferiorly. The brachiocephalic vein is formed by merging internal jugular and subclavian veins.
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