NURS 364 Lecture Notes - Lecture 15: Anaplasia, Chondroma, Neoplasm
14 Dec 2017
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Document Summary
It is tissue overgrowth that is independent of the laws governing the remainder of the body uncontrolled clonal proliferation of cells virtually any cell type in the body. Divide frequently to create new stem cells. Labile- epithelial cells in areas that get disturbed a lot. Cancer often found in epithelial cells not in heart cells or neurons. Ability to differentiate into multiple different cell types. When differentiated cells mutate, they form differentiated working tumors - benign tumors. When undifferentiated, rapidly dividing cells mutate, they form rapidly dividing tumors - malignant tumors. Do not wait for signals from the body that the new cells is needed- they signal themselves. They continually produce telomerase- repairs telomere so cell continues to divide and since it keeps getting older it runs higher risk of mutations and mistakes. Capsulated round, lumps , don"t have own blood supply.
