Question

question 2 of 13
karen was infected with hiv (human immunodeficiency virus) 5 years ago. as the virus attacks important cells of her immune system, known as cd4 cells, karen is at an increased risk for infection. recently, karen learned that not only does hiv directly attack cd4 cells, but the presence of the virus seems to activate pathways responsible for programmed cell death in cd4 cells. thus, hiv infection appears to increase the rate of \suicide\ for cd4 cells.

make the connection: drag and drop the proper term for the cellular change or injury that is best exemplified by the case scenario.

apoptosis atrophy benign neoplasia dysplasia gangrene hyperplasia
malignant neoplasia metaplasia necrosis pathological hypertrophy physiological hypertrophy
pathologic calcification

intracellular accumulation

Explanation:

The scenario describes HIV activating programmed cell death (apoptosis) in CD4 cells. Apoptosis is programmed cell death, and the case mentions "suicide" of CD4 cells, which matches apoptosis. Other terms like atrophy (decrease in cell size), neoplasia (abnormal growth), necrosis (unprogrammed cell death), etc., don't fit as well. So the correct term is apoptosis.

Answer:

apoptosis