Immunology

The first line of defense includes

• Antibodies

• T-cells

• Skin and mucous membranes

• Complement proteins

T-lymphocytes mature in the

• Bone marrow

• Thymus

• Spleen

• Tonsils

Cell-mediated immunity primarily protects against

• Extracellular bacteria

• Allergens

• Viruses and intracellular pathogens

• Parasites

The spleen primarily filters

• Lymph

• Blood

• Tissue fluid

• Interstitial fluid

Complement system proteins are mainly synthesized by

• Liver

• Spleen

• Macrophages

• Lymphocytes

Which cell releases histamine during inflammation?

• Macrophage

• Lymphocyte

• Neutrophil

• Mast cell

A major difference between innate and adaptive immunity is that innate immunity

• Is weaker

• Uses antibodies

• Lacks specificity but is immediate

• Is present only in vertebrates

Transfer of maternal antibodies through placenta provides __________ __________ immunity.

(a)  

The immune response against intracellular bacteria mainly involves

• Antibodies

• Complement

• Mast cells

• 
  Cytotoxic T cells
  

The complement system primarily enhances immunity by

• Producing antibodies

• Promoting inflammation, opsonization and lysis

• Activating T cells

• Generating immunological memory