NURS 2090 Lecture Notes - Anaplasia, Metastasis, Point Mutation
16 Apr 2013
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In terms of cancer, if we look at the areas that continually proliferate, they are more apt to develop cancer. i. e skin and respiratory continually regenerate itself. *** poorly undifferentiated cancer is harder to treat. Cellular proliferation: the generation of new, daughter cells which divide from parent cells. Meiosis- is a process of dividing germ cells resulting in sperm and ovum. Would result in inherited cancers, which are only around 1% Mitosis- is division and proliferation of all nongerm cells. Cellular differentiation: the orderly process of cellular maturation to achieve a specific function. Stem cells: ** undifferentiated are valued for flexibility/adaptability. Highly undifferentiated units (they are flexible and able to adapt to be specialized for different parts of the body) Have the potential to divide into progenitor cells (parent cells), maturing into differentiated units with special function. With differentiation, cells lose their ability to flexibly respond and adapt. Differentiated cells carry out important physiological functions (rbcs with blood loss)
