# All of the infrahyoid muscles are supplied by ansa cervicalis EXCEPT:
A. Thyrohyoid
B. Sternohyoid
C. Sternothyroid
D. Inferior belly of omohyoid
The correcct answer is A. Thyrohyoid.
Infrahyoid muscles are sternohyoid, sternothyroid, thyrohyoid and omohyoid present in the superficial plane of the anterior triangle of neck. Sternohyoid, sternothyroid, omohyoid are supplied by ansa cervicalis EXCEPT thyrohyoid which is supplied by the first cervical nerve through hypoglossal nerve.
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