Department of Anatomy, Krishna Institute of Medical Sciences Deemed University, Karad, Maharashtra 415110, India.
Singapore Med J. 2011 Dec;52(12):e265-6.
Carotid arteries and their branches exhibit a wide range of variations. However, variations in the origin of the thyrolingual trunk from the common carotid artery are rare. We observed a case of thyrolingual trunk arising from the bifurcation point of the right common carotid artery during a routine dissection class for medical undergraduates. The thyrolingual trunk was running medially and downward before dividing into the upper lingual artery and the lower superior thyroid artery. No such variation was noted from the bifurcation point of the left common carotid artery.
颈总动脉及其分支表现出广泛的变异。然而，甲状腺舌骨干起源于颈总动脉的变异较为罕见。我们在为医学生开设的常规解剖课上观察到一例右侧颈总动脉分叉处发出甲状腺舌骨干。甲状腺舌骨干在分为上舌动脉和下甲状上动脉之前，向内侧和向下走行。左侧颈总动脉分叉处未见这种变异。
