ABSTRACT
FIGURE 1 ■ Transverse section of lower neck in fetal specimen at 20 weeks’ gestation. Arrowheads, thyroid gland; long arrow, points to vagus nerve. T, trachea; E, esophagus; J, jugular vein; C, carotid artery; B, body of cervical vertebra; L, laminar ossification centers; S, spinous process. Source: From Ref. 2.
