病理.txt（Pathological.Txt）.docVIP

病理.txt（Pathological.Txt） 1 the concept, types and pathogenesis and morphologic characteristics of hyaline degeneration are discussed. Answer: Glass change, also known as hyaline degeneration, refers to the cell, connective tissue and blood vessel wall appear homogeneous, red dye, no structure of translucent glass like material, become glass change. (1) the vessel wall hyalinization, fine hardening of the arteries, arterioles common in hypertension of kidney, spleen, brain and retina is mainly due to the increase of fine arterial intimal permeability, plasma protein in endothelial cells into the intima, solidified into the structure of the uniform red dye substance. Thickening and hardening of the walls of the arterioles, narrowing of the lumen, or even occlusion. (2) hyaline tissue degeneration is the manifestation of aging of collagen fibers. It is found in the physiological (scar) and pathological increase (fibrosis, fibrosis, etc.) of fibrous connective tissue. (3) intracellular glass change is the abnormal protein accumulated in cells, forming homogeneous and red staining near round corpuscles, such as Mallory corpuscles in liver cells during alcoholism. What are the main morphological signs of 2 cell necrosis? Answer: the nucleus changes, morphological expression is nuclear pyknosis (pyknosis), dyeing is deeper, the volume of nucleus is reduced; Nuclear fragmentation (karyorrhexis), nuclear chromatin disintegrated into small fragments, chromatin fragments dispersed in the cytoplasm; nuclear fusion (karyolysis), under the action of the enzyme decomposition, chromatin DNA, and staining qualitative light, only to see, not even to see the nuclear profile. 3 what is called machine change? In which cases can the operation be computerized? Answer: if the necrotic tissue can not be completely dissolved, absorbed or separated out, the surrounding tissue, new capillaries and fibroblast cells, granulation tissue, ingrowth and replacement of necrotic tissue. The process of