第三节　颈前区

图35 下颌下三角内结构
Submandibular triangle structure

图36 颈动脉三角内结构
Carotid triangle structure

图37 颈内外动脉与脑神经的关系
Relationship between carotid internal artery and cranial nerve

图38 二腹肌后腹的比邻关系
Adjacent to the posterior belly of digastric relationship

图39 颈前区结构
Structure of anterior region of the neck

图40 国人甲状腺的形态类型
Morphological types of thyroid of the Chinese people

图41 甲状腺动脉（前面观）
Thyroid artery (anterior aspect)

图42 甲状腺神经（前面观）
Nerves of the thyroid gland (anterior aspect)

图43 甲状腺静脉（前面观）Veins of the thyroid gland (anterior aspect)

图44 甲状腺下动脉与喉返神经的关系
Relationship between the inferior thyroid artery and recurrent laryngeal nerve