淋巴系统（医学课件）.ppt

* * 烦恼有何惧怕，既然躲不掉，就调好心态与它共存。心向阳光，何惧风霜。茫茫人海你我相遇就是缘分，欢迎下载！ 2021/4/26 * Chapter 11 The Lymphatic System 2021/4/26 * The lymph system is commonly referred to as the body’s sewerage system (an accessory system of the cardiovascular). It works by acting in harmony with the blood, surrounding every cell in the body and protecting each one by removing dead cells, blood proteins and any other toxins and excreting them from the body. The toxins are then removed from the body through our waste products, mucus, or our skin. Section 1 The general description 2021/4/26 * Ⅰ. The lymph conducting vessels Ⅰ). The lymphatic capiliaries 2021/4/26 * Ⅱ). The lymphatic vessels The lymphatic capillaries merge to form lymphatic vessels Features : 1. They have three-layered walls similar to the walls of veins. 2. They have more numerous than those in veins. 3. Two sets of lymphatic vessels. Ⅲ). The lymphatic trunks When the lymphatic vessels traversed the corresponding lymph nodes from the various parts of the body , they unite with one another and finally form nine lymphatic trunks Right and left jugular trunks Right and left subclavian trunks Right and left bronchomediastinal trunks Right and left lumbar trunks Intestinal trunk 2021/4/26 * Ⅳ). The lymphatic ducts Thoracic duct (30-40cm) It begins at the upper end of the cisterna chyli. 2. Right lymphatic duct (1cm) It receives lymph from the right superior1/4 of the body. Right Lymphatic duct 2021/4/26 * Ⅱ. The lymph Nodes (about 400-450 in adult) metastase 2021/4/26 * Lymph nodes are usually arranged in groups, along the blood vessels. Functions : Filter products and prevent them from entering the general circulation. 2021/4/26 * 2021/4/26 * Section 2 The lymphatic drainage 2021/4/26 * Ⅰ. The lymphatic drainage of the head ad neck 9、 人的价值，在招收诱惑的一瞬间被决定。*** 10、低头要有勇气，抬头要有低气。**** 11、人总是珍惜为得到。***** 12、人乱于心，不宽余请。**** 13、生气是拿别人做错的事来惩罚自己。***** 14、抱最大的希望，作最大的努力。**** 15、一个人炫耀什么，说明他内心缺少什么。。***** 16、业余