Section 3 Medical Literature 第三部分 医学文献
Part 1.
Regional anatomy considers the organization of the human body as segments or major parts based on form and mass:a main body，consisting of the head，neck，and trunk(subdivided into thorax，abdomen，back，and pelvis)，and paired upper limbs and lower limbs.All the major parts may be further subdivided into regions and zones.Regional anatomy is the method of studying the body’s structure by focusing attention on a specific part(e.g.the head)，region(the face),or subregion(the orbit); examining the arrangement and relationships of the various systemic structures(muscles，nerves，arteries，etc.)within it；and then usually continuing to study adjacent regions in an ordered sequence.When studying anatomy it is important to make the effort routinely to put the regional anatomy into the context of that of adjacent regions and of the body as a whole.
Regional anatomy also recognizes the body’s organization by layers:skin，subcutaneous tissue,and deep fascia covering the deeper structures of muscles,skeleton，and cavities，which contain viscera［1］(internal organs).Many of these deeper structures are partially evident beneath the body’s outer covering and may be studied and examined in living individuals via surface anatomy.
注释：
1）viscera 内脏
Part 2.
Title:Vulnerability of long thoracic nerve:an anatomic study Content:(https://www.daowen.com)
(1)The anatomic course of 40 long thoracic nerves was studied in relation to anatomic landmarks and reference lines，that is，the axillary lines and first 2 ribs.
(2)After its supraclavicular course［1］the nerve passes beneath the clavicle within the axillary sheath［2］and then emerges from the axillary sheath.
(3)As it passes inferiorly and posteriorly from the point of emergence to the posterior angle of the second rib，it makes a posterior angle of 30.7 degrees on average，relative to the anterior axillary line.
(4)It then continues to descend inferiorly between the middle and posterior axillary lines.
(5)When the arm is raised,the axillary neurovascular bundle moves superiorly with the movements of the arm.
(6)The long thoracic nerve is angulated and stretched at the point it passes out of the axillary sheath.
注释：
1）supraclavicular course 锁骨上运行
2）axillary sheath 腋鞘