The position, structure and function of the breast are as follows:
Location of thymus:
The breast is an important lymph organ of the human body, located mostly in the middle of the two lungs, with a chest handle, an arcal bow, an upper vein, a vein of the left and right arm, and a trachea, with a thyroid and chest contour, and a heart, whose specific position will change with age, as the breast becomes larger in early childhood and gradually degrades after adolescence。
Structure of the breast:
The cortex is divided between the right and the right leaves, the surface is covered by thin contusion tissues and deep into the chest, dividing the substance of the chest into many small cortex leaves that are not fully separated. The cortex is made up of cortex (light) and marrow (deep) parts. The cortex consists mainly of cortexed cell cells and t cells at different stages of development. In these, the cortex cell, which includes both lower membrane skin cells and asteroid cell cells, is able to separate the pealin and hysteresis and, together with the stellar cell, promotes the development of t-cells (magnetic cells) with the intervention of t-cells in immune functions. The marrow consists of a larger number of marrow epipelagic cells and a small number of t-cells, tree tattered cells, megacormic cells, among others, in which some of the marrow epipelagic cells form a small thymus, are characteristic structures of the marrow and are involved in the formation of t-cells。
3 the function of the breast:
The lymphatic stem cells, which are primarily functioning to produce t-cells, are important immunocellular cells, initially lymphatic stem cells, while the lymphocytes provide a site for lymphocytes to split, develop and mature, and the cortexes of the lymphatic cell in the lymphatic acetone, and the lymphatic stem cells are divided into t-cells at a time when the lymphatic stem cells are not immune and, with the nutrient effects of the hyena, about 5 per cent of the t-cells are able to develop, acquire immune functions, and the remaining premature t-cells will die and be swallowed up and removed by the giant eating cells inside。
The lymphs are central lymph organs, and when they mature, t-cells go out from the lymphs and enter through blood or lymph fluids into the outside lymph organs, such as lymph knots, spleen, tonsils, etc., and are activated when they encounter antigen irritation to kill the antigens and protect the human body。
