Immune System

All of these are part of the innate immune response except: 

• B cells
• mast cells
• natural killer cells
• macrophages

All of the following are aspects of inflammation except: 

• constriction of blood vessels
• phagocytes and neutrophils produce cytokines that signal the brain to produce a fever
• increase in permeability of blood vessels
• pain

These cells bind to antigen presenting cells signaling them to produce cytokines that stimulate B and T cells to divide

• helper T cell
• mast cell
• cytotoxic T cell
• plasma cells

Where are B and T lymphocytes produced?

• thymus
• pancreas
• bone marrow
• thryoid

The primary purpose of vaccines is to __.

• induce inflammation
• activate the immune system to produce memory cells
• stimulate natural killer cells
• initiate the innate immune response

This protein increases the blood vessels permeability to WBCs and other substances involved in the immune response.

• histamine
• complement
• lysozyme
• defensin

Adaptive immunity depends on

• traits common to groups of pathogens.

• pathogen-specific recognition

• maternal provision of antibodies to offspring

• plants being exposed to new pathogens.

A key part of the humoral immune response is

• the attack of cytotoxic T cells on infected host cells.

• the production of antibodies by plasma cells.

• perforation of infected host cells by perforin.

• the attack of phagocytes on living pathogens.

The receptors on T cells and B cells bind to

• antibodies.

• antigens

• natural killer cells.

• immunoglobulins.

Secondary immune responses upon a second exposure to a pathogen are due to the activation of

• memory cells.

• macrophages.

• stem cells.

• B cells.