Animal anatomy, histology, pathological anatomy

Topic: Anthracosis of the lungs - 2 hours.

Objectives of the topic: To teach students the macroscopic and microscopic manifestations of dystrophy in the example of the lungs. Visual equipment and instruments: Organ, microtome, block window box, hemotoxylin, eosin. Alcohol, xylene, paraffin, microscopy, histological preparation No. 17 and museum preparations

Purpose of the lesson: Study of microscopic and macroscopic appearance. 1. Working pieces of pathological material will be cut from the kidneys and skeletal muscles. 2. The particles are washed and dehydrated in an alcohol battery. 3. Paraffin blocks are made. 4. Paint normal cuts. 5. Sections are stained with hematoxylin and eosin dyes. 6. Macroscopic changes are studied using museum preparations.

Exogenous pigments through the lungs and through the skin of various pigments: pollen, grain, coal, aluminum pollen, silicate dust. They remain in custody in the cytoplasm of phagocyte cells in the blood and lymphatic passages through the lymph nodes, caused and distributed in the body. The organ and tissue are retained. As a result of the above anthracose pigments, lung disease caused with more frequent. Anthracos horses and dogs often excrete large quantities of coal dust from inflammation in the lungs and connective tissue growth - induration. Light coal pollen spreads to the lymph nodes and sometimes to the liver and spleen. Great horned animals feeding the body with coal dust, lymph nodes antracose injury dunes. Macroscopic view. Pleural roads under gray and black, small black dots, decorated with fibers. Shifeng resembles the color of the lungs, palpation is difficult, cut from and cut out the surface, color, shape, color. Microscopic appearance. In a small mirror, coal grains are visible along the path of the bronchi, in the cavity of the alveoli, on the wall. Blood vessels and bronchi tissue atrophy from this officer. The alveolar cavity shrinks due to the growth of connective tissue assembled from pigment cells in the alveolar wall of pigmented cells. The largest coal pollen alveolar macrophages in the wall mirror, bronze atrophy, vascular connective around to'qimalada. They are also visible in the alveolar epithelium. Pollen charcoal is collected in the growth of connective tissue (proliferation of connective tissue and lymphoid cells).