GENERAL ANATOMY
IMMUNE SYSTEM
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
it kills the antibodies in your body
|
|
|
it prevents you from making new antibodies
|
|
|
it prevents your body from remembering the diseases you have already had
|
|
|
it attacks WBCs so your body can’t fight infection
|
Detailed explanation-1: -HIV finds the white blood cells, called CD4 cells. HIV gets inside the CD4 cell and makes copies of itself. Then, HIV kills the CD4 cell and the new HIV copies find other CD4 cells to get inside and start the cycle again. HIV kills immune system cells that help the body fight infections and diseases.
Detailed explanation-2: -HIV binds to the CD4 molecule on the surface of helper T-cells and replicates within them. This results in destruction of CD4+ T-cells and leads to a steady decline in this population of T-cells.
Detailed explanation-3: -Scientists have discovered that the human immunodeficiency virus (HIV) hijacks a small molecule from the host cell to protect itself from being destroyed by the host’s immune system.
Detailed explanation-4: -To infect cells, the HIV protein envelope (Env) binds to the primary cellular receptor CD4 and then to a cellular coreceptor. This sequential binding triggers fusion of the viral and host cell membranes, initiating infection.
Detailed explanation-5: -Almost all persons develop antibodies within 2 to 12 weeks, but it can take up to 6 months after infection. A positive result means antibodies to HIV were found in your body. This means you have HIV infection. You are infected for life and can spread HIV to others.