Copy Right Boundaries of the neck anUniversity Q Superiorly: lower border of the mandible, the angel of mandible, the mastoid process, the sup. nucha line and the ext occipital protuberance Inferiorly: upper border of sternum the clavicle and a line extending from the acromion to the spine of the 7th cervical vertebra Copy Right- Hongqi ZHANG-Department of Anatomy-Fudan UniversityCopy Right- Hongqi ZHANG-Department of Anatomy-Fudan University Copy Right- Hongqi ZHANG-Department of Anatomy-Fudan University Boundaries of the neck Superiorly: lower border of the mandible, the angel of mandible,the mastoid process,the sup. nucha line and the ext.occipital protuberance. Inferiorly: upper border of sternum, the clavicle and a line extending from the acromion to the spine of the 7th cervical vertebra