Chapter 19 Overview Flashcards
disease that is caused by abnormal and excessive growth of cells in the body
cancer
new growths that arise from normal tissue
tumors (neoplasms)
capable of invasion and spread to surrounding or more distant sites
malignant
noninvasive and not spreading to other sites
benign
benign tumors grow slowly or rapidly
slowly
malignant tumor cells grow slowly or rapidly
rapidly
contained within a fibrous capsule or covrt
encapsulated
benign tumors are often ________
encapsulated
malignant tumors characteristically are ______ and _______
invasive and infiltrative
stain excessively with dyes that recognize genetic material (DNA)
hyperchromatic
malignant transformation results from damage to what?
DNA
cell division
mitosis
each DNA piece
gene
DNA stops making normal codes that allow the cells to carry on the function of differentiating mature cells
anaplastic
found in a variety of products and drugs
chemical carcinogens
consists of waves of energy
radiation
programmed cell death
apoptosis
ras
colon cancer