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Coarctation of aorta (aorta narrow)
Tetralogy of Fallot (blockage of blood flow) Hypoplastic left heart syndrome. (the entire left side of the heart, including valves and blood vessels, is underdeveloped)
Morpho-functional characteristic of the Immune system: central and peripheral organs of the immune system. Organs of the immune system: classification, anatomical, functional characteristics.
Immunity system is what we are born with and it is nonspecific; all antigens are attacked pretty much equally. It is genetically based and we pass it on to our offspring. The immune system is a system of biological structures and processes within anorganism that protects against disease. To function properly, an immune system must detect a wide variety of agents, from viruses to parasitic worms, and distinguish them from the organism's own healthy tissue. In many species, the immune system can be classified into subsystems, such as the innate immune system versus theadaptive immune system, or humoral immunity versus cell-mediated immunity. Immunity can be either natural or artificial, innate or acquired=adaptive, and either active or passive. · Active natural (contact with infection): develops slowly, is long term, and antigen specific. · Active artificial (immunization): develops slowly, lasts for several years, and is specific to the antigen for which the immunization was given. · Passive natural (transplacental = mother to child): develops immediately, is temporary, and affects all antigens to which the mother has immunity. · Passive artificial (injection of gamma globulin): develops immediately, is temporary, and affects all antigens to which the donor has immunity.
General morphology and development of the Lymphatic system, it’s role in an organism. Main links of this system of the systems, their structure. Distinctive features of the structure of lymphatic capillaries, vessels, trunks. The structure of the lymphatic nodules. Role The lymphatic system aids the immune system in removing and destroying waste, debris, dead blood cells, pathogens, toxins, and cancer cells. The lymphatic system absorbs fats and fat-soluble vitamins from the digestive system and delivers these nutrients to the cells of the body where they are used by the cells. The lymphatic system also removes excess fluid, and waste products from the interstitial spaces between the cells. Development Lymphatic tissues begin to develop by the end of the fifth week of embryonic development. Lymphatic vessels develop from lymph sacs that arise from developing veins, which are derived from mesoderm Дата добавления: 2015-02-02 | Просмотры: 807 | Нарушение авторских прав |