IMMUNE HIV/AIDS (ORGANS & CELLS OF THE IMMUNE SYSTEM (LEUKOCYTES:…
ORGANS & CELLS OF THE IMMUNE SYSTEM
Lymphocytes: T-lymphocyte (T cells), B-lymphocytes (B cells) & Natural Killer (NK)
Monocytes, Eosinophils, Basophils.
ORGANS: Lungs, Skin, Thymus, Spleen, Tonsils, and Liver.
COMPONENT & PHYSIOLOGY PART OF THE INNATE & ADAPTIVE PART OF THE IMMUNE SYS.
INNATE IMMUNE: Inborn Defense mechanism.
Skin mucosal membranes (Prevent entry).
Nonspecific internal defenses: Cells(e.g., macrophages, NK cells), Chemicals (e.g., interferon, complement) Physiologic responses (e.g., inflammation, fever)
ADAPTIVE IMMUNITY involves specific T-lymphocytes and B-lymphocytes (Plasma cells)
The lytic and lysogenic stages of a virus:
The lytic cycle involves the reproduction of viruses using a host cell to manufacture more viruses; the viruses then burst out of the cell.
The lysogenic cycle involves the incorporation of the viral genome into the host cell genome, infecting it from within.
difference between HIV and AIDS.
HIV is a virus that can be transmitted from one person to another. lead to immune system deterioration.
AIDS is a condition. Contracting HIV can lead to the development of AIDS.
Functions of the specific leukocytes, focusing especially on the lymphocytes,
BASOPHIL: Defends against parasites and bacteria by excreting heparin and histamine.
NEUTROPHILS: mainly target bacteria and fungus.
EOSINOPHILS: target larger parasites, & modulate allergic inflammatory responses.
MONOCYTES: fights off bacteria, viruses & fungi.
LYMPHOCYTES: identify and destroy foreign invaders. (types of lymphocytes:
: circulate in the front lines of our blood and work to identify foreign invaders.
surround, bind, and help kill foreign invaders.
Natural killer cells:
defend against tumors and viruses.
Difference between a viral and bacterial infection and how they are treated,
VIRAL INFECTION: Is systemic because it spreads throughout the body, It is contagious, and can't be treated with antibiotics.
TREATED with antiviral medications.
BACTERIAL INFECTION: Is localized and is sometimes contagious. Can be treated with Antibiotics.
A 34 year old male diagnosed with AIDS. He tested positive for HIV over a year ago.
Untreated HIV which led to AIDS
Untreated HIV reduces the number of CD4 cells, AIDS is diagnosed when the CD4 T cell count falls below 200.
People with AIDS are susceptible to opportunistic infection or cancer, life expectancy without treatment falls to about 1 year.
HIV attacks T cells that help the body fight infection, makes the body more vulnerable to other infections and diseases
anxiety and depression,
Immune system under attack
HIV attacks and kills(using the T cells to make more of the virus) the immune system and weakens immune responses (The fewer the CD4 T cells, the weaker the immune system becomes).
As HIV progresses, it starts to affect more the body's homeostasis, by killing your immune system. The body starts to develop mild infections and symptoms like.