NURS 548 Advanced Pathophysiology questions and answers

Apoptosis - correct answer-Cells of a neoplasm do not die off like normal cells so the number of cells grows, rather than remain constant as in healthy tissue. Labile Cell - correct answer-Cells of tissue that continuously divide and replicate throughout life. Ex: epithelial cells of skin, oral cavity, vagina, cervix, GI tract, and bone marrow. Permanent Cell - correct answer-Cells of tissue that do not proliferate. Ex: nerve cells, skeletal muscle cells, and cardiac muscle cells. Stable Cell - correct answer-Cells of tissue that stop dividing once tissue growth ceases. Capable of undergoing regeneration. Ex: parenchyma of solid organs (liver and kidney), smooth muscle cells, vascular endothelial cells, and fibroblasts. Proto-Oncogenes - correct answer-The normal genes that case for normal proteins used in cell division: -growth factors -growth factor receptors -G proteins -Enzymes that produce secondary messengers -Genes that turn the productions of these proteins on and off