Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key


Play button


Play button




Click to flip

25 Cards in this Set

  • Front
  • Back
Innate immunity
cells that are always ready
nonspecific response to pathogens; includes mast cells, neurophils and macrophages
mast cells
release chemical messengers that cause blood vessels near the wound to constrict
are phagocytic and also secrete lysozyme- which degrades bacterial cell walls, free radicals, NO and ROIs
arrive after neutrophils and also secrete cytokines which attract other immune system cells
inflammatory response
swelling due to increase in cells and fluids in the area, red and warm due to increased blood flow, pain, fever
acquired immunity
cells that require activation
the cells that carry out the acquired immune response
lymph system
lymphocyte is made in the thymus and bone marrow, activated in the spleen and lymph nodes, and is transported by lymphatic ducts and blood vessels
is any foreign molecule that can initiate an immune system response
selected region of an antigen that antibodies, BCRs, and TCRs bind to
lymphocyte that is bursa-dependent and produce antibodies
B-cell receptor
are identical to the antibody that the b-cell produces
clonal selection
the process of an antigen binding to receptor on a lymphocyte activates division of lymphocyte
a family of proteins that are the key to acquired immune response
monomer; the most abundant type of secreted antibody. circulates in blood and interstitial fluid. protects against bacteria, viruses, and toxins
dimer; most common antibody in breast milk, tears, saliva, and mucus. prevents bacteria and viruses from attaching to mucous membranes; immunizes newborns
pentamer; first type of secreted antibody to appear during an infection. binds many antigens at once; effective at clumping viruses and bacteria so they can be killed
monomer; rarest type of antibody. involved in hypersensitive reaction that produces allergies
monomer; present on membranes of mature b-cells; probably involved in activation of b-cells
are involved in an array of functions, including recognizing and killing host cells that are being infected witha virus
CD4 T-helper-1 cells
inflammatory cells interact with Class II MHC and recruit non-specific effector cells (e.g. phagocytes)
CD4 T-helper-2 cells
cells interact with Class II MHC and recruit B lymphocytes and make them produce antibodies
CD8 T-cytotoxic cells
interact with Class I MHC on a target (infected) cell release of cytokines and induce apoptosis in target cell
Major histocompatibility protein (MHC)
protein inside the ER that have a groove where small antigen fragments bind. the mhc then moves to the golgi to present the antigen on the surface of the cell membrane