has part has part has_part characteristic of part of has modifier abnormal sympathetic trunk morphology abnormal cervical sympathetic trunk morphology 2017-10-12T18:05:57Z any structural anomaly of the portion of the sympathetic trunk located in front of the front of the transverse processes of cervical vertebrae and neck of the 1st rib behind the carotid sheaths and in front of prevertebral fascia abnormal cervical sympathetic nerve trunk morphology MP:0020504 morphology abnormal cervical sympathetic nerve trunk