It descends on the larynx, beneath the sternothyroid muscle, to supply the cricothyroid muscle.
2.
Branches from the ansa cervicalis innervate most of the infrahyoid muscles, including the sternothyroid muscle, sternohyoid muscle, and the omohyoid muscle.
3.
Several other structures pass or sit over it; the sternohyoid and sternothyroid muscle s stretch along its length, and the thyroid gland sits below this; with the isthmus of the gland overlying the second to fourth rings.
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