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MICR 270 Exam with Questions and 100% Verified Answers
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MICR 270 Exam with Questions and100% Verified Answers
Phagocytes - Answer A type of white blood cell that ingests invading microbes
how phagocytes move - Answer pseudopodia
evolutionary heirarchy of lympoid tissues - Answer GALT-Thymus/spleen-Bone marrow-
Lymph nodes
Langerhans cells - Answer epidermal macrophages that help activate the immune
system
myeloid progenitor - Answer the stem cell in bone marrow that gives rise to the
myeloid lineage
Makes innate immune cells:
granulocytes(mast cell, basophil, eosinophil,neutrophil)
monocytes (macrophages)
Erythrocytes
Thrombocytes
Lymphoid progenitor gives rise to - Answer Adaptive immune cells:
B-cells(plasmocytes and memory b-cells)
,T-cells( Helper t-cell, cytotoxic t-cell, memory t-cell)
natural killer cells
You are only ___ % human - Answer 10%
commensal - Answer describes an organism that lives symbiotically with a host; this
host neither benefits nor suffers from the association
pathogenic - Answer microbes causing disease
adaptive system - Answer -specific: protects us against particular pathogens
-form the third (elite) line of defense
antibody - Answer A protein that acts against a specific antigen
Antigen - Answer A protein that, when introduced in the blood, triggers the
production of an antibody
antigen presentation - Answer The process by which an MHC molecule binds to a
fragment of an intracellular protein antigen and carries it to the cell surface, where it
is displayed and can be recognized by a T cell.
autoimmine - Answer immune system attacks its own body
Basophils - Answer A circulating leukocyte that produces histamine.
least common granulocyte
B cells - Answer produce antibodies; mature in the bone marrow
, bone marrow - Answer A soft tissue inside the bone that produces blood cells
cell-mediated immunity - Answer type of immunity produced by T cells that
attack infected or abnormal body cells
th1 t cell activates cytotoxic t cell making CTL eliminating any cell w the specific antigen
complement - Answer part of your body's immune system that cleans up damaged
cells, helps your body heal after an injury or an infection and destroys microscopic
organisms like bacteria that make you sick.
-30 soluble protiens
-proteins circulate thru blood
-triggers cascade creating membrane attack complex which destroys
extracellular pathogens
cytokine - Answer chemical substance produced by certain cells that initiates, inhibits,
increases, or decreases activity in other cells
dendritic T cells - Answer antigen-presenting cells that can communicate with T
cells both directly and indirectly, regulating our adaptive immune responses against
environmental and self-antigens.
-present antigens by mhc complex to t cells
Damage-associated molecular patterns (DAMPs) - Answer Basically products of
cellular damage that can be recognized by PRRs.
Eosinophils - Answer a white blood cell which is phagocytic containing granules
that damage parasitic membranes
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