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34 year old male with AIDS. was positive for HIV over a year ago, had…

- - - - adaptive immune system
    - - suppress or regulate immune response
    - - more likely to infections and cancers
        
        higher risk of lymphoma
        
        lung cancer
      - as the virus advances it leads to these symptoms
        
        fatigue
        
        shortness of breath
        
        cough
        
        pneumonia
        
        diarrhea
        
        poor appetite
        
        weight loss
        
        swollen lymph nodes
        
        oral thrush
        
        skin issues
        
        eczema
        
        seborrheic dermatitis
        
        scabies
        
        skin cancer
        
        fever
  - - - dementia complex
    - - depression
- - - - bone marrow
        
        tissue inside of bone
        
        key element of lymphatic system
      - "educates" T-cells and provides environment for development of T-cells
        
        The thymus is largest and most active during the neonatal and pre-adolescent periods of development. By the early teens, the thymus begins to atrophy and thymic stroma is replaced by adipose tissue. Nevertheless, residual T-lymphopoiesis continues throughout adult life
  - - - tonsils and adenoids
        
        lymph vessels
        
        lymph nodes
        
        skin
        
        liver
        
        acts as a “sieve” for antigens carried to it via the portal system.
        
        the first line of defense against external factors
        
        in the neck, armpit, abdomen, and groin
        
        B,T, and other immune cells
        
        act as filter and traps of foreign pathogens
        
        1 more item...
        
        link lymph nodes
        
        first line of defense against ingested and inhaled foreign pathogens
      - blood filter
        
        synthesizes anti-bodies in white pulp
- - - - Phahocytes
        
        macrophages
        
        neutrophils
        
        dendritic cells
        
        located in the skin and mucosal, nose, lungs, stomach and intestines
        
        in contact with the external environment
        
        1 more item...
        
        in blood stream
        
        migrate towards inflammation
        
        first cells to arrive at the scene of infection
        
        digest debris
        
        act as "cleaner" cells of the body
        
        activate the adaptive immune system
        
        mast cells
        
        eosinophils
        
        basophils
        
        natural killer cells
        
        attack and destroy tumor cells
        
        1 more item...
        
        secret chemical mediators
        
        defend against parasites and play a role in allergice reactions such as asthma
        
        reside in connective tissue and mucus membrane
        
        most often associated with allergy and anaphylaxis
      - immune system cells involved in defending the body against infectious diseases and foreign materials
    - - come into play immediately or within hours of an antigen's appearance in the body
        
        include physical barriers such as skin, chemicals in the blood, and immune system cells that attack foreign cells in the body
  - - - T-Lymphocytes (cell mediated immunity)
        
        originate in stem cells and bone marrow
        
        help body kills cancer cells and control the immune response to foreign substances
        
        they destroy those cells taken over
        
        Killer T cells
        
        cytotoxic cells
        
        scan the cells surface to see if they've become infected
        
        kill infected cells
        
        Helper T-cells
        
        help other cells start and control the immune response against foreign substances
        
        more than one type
        
        all have certain job against infections
      - B-lymphocytes (humoral immunity)
        
        plasma cells
        
        make antibodies
        
        remain in body for decades-respond faster to future attacks
        
        stop lymphocytes that cause inflammation
        
        fight foreign substance known a antigens
        
        each B-cell makes specific antibody
        
        antibodies match antigen-that antigen is marked for destruction
- - - - viruses arre smaller and require living hosts
        
        viruses invade your cells and take over that cells machinery, producing a virus
- - - - single celled microorganisms that thrive in many different types of environments
- - - - also referred to as CD4 cells
      - make copies of itself inside the cells
        
        gradually weakens the immune system
- - - - if infection is advanced and untreated will lead to death