Mastering A&P Immune System Practice Test

How does HIV primarily affect the immune system?

It targets and destroys red blood cells It targets and destroys helper T cells It stimulates the production of antibodies It enhances the function of macrophages

Correct Answer:

It targets and destroys helper T cells

Explanation:

HIV primarily targets and destroys helper T cells, also known as CD4+ T cells, which play a crucial role in the immune response. These cells are essential for coordinating the immune response by signaling other immune cells, such as B cells and cytotoxic T cells, to function effectively. By significantly reducing the number of helper T cells in the body, HIV compromises the immune system's ability to combat infections and diseases. This leads to a weakened immune system, which can progress to acquired immunodeficiency syndrome (AIDS) if left untreated. The destruction of these vital cells is the primary reason for the severe immunodeficiency associated with HIV infection.

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