Chapter 25 -

Question 1

White blood cells that contain histamine granules and other substances that are released during inflammatory and allergic responses.

Answer 1

basophils

Question 2

Chemicals that work to cause the immune or allergic response; for example, histamine.

Answer 2

chemical mediators

Question 3

A chemical found in mast cells that, when released, causes vasodilation, capillary leaking, and bronchiole constriction; found in large amounts in basophils; increases tissue inflammation.

Answer 3

histamine

Question 4

Basophil cells located in connective tissues to which antibodies, formed in response to allergens, attach, bursting the cells and releasing chemical mediators in response to an antigen-antibody reaction.

Answer 4

mast cells

Question 5

The first encounter with the foreign substance to begin the immune response.

Answer 5

primary response

Question 6

Itching

Answer 6

pruritus

Question 7

An autoimmune connective tissue disease that causes fibrotic (scar tissue–like) changes to the skin, blood vessels, muscles, and internal organs.

Answer 7

scleroderma

Question 8

The ability to recognize a foreign substance the next time it is encountered.

Answer 8

sensitivity

Question 9

A multisystem autoimmune disease.

Answer 9

systemic lupus erythematosus