Exam 28: Immunity and Host Defense

Blood and lymph have the following in common EXCEPT

The ability of humans to resist a disease is called

Describe extravasation.

If you were given a new necklace and developed reddening, swelling, and itching of your skin around your neck after 24 hours of putting on the necklace, what reason would you give to this phenomenon?

The inflammatory cytokines IL- 1, IL- 6, and TNF- a are _________producing fever by stimulating the release of prostaglandins in the brain.

The immunization strategy that involves the use of recombinant DNA proteins as immunogens involves the use of a vaccine known as_________ .

The body's non- inducible, preexisting ability to recognize and destroy pathogens or their products is called _________.

Monocytes and granulocytes are the two lineages of myeloid cells.

Individuals with severe combined immunodeficiency syndrome (scid) have a genetic defect that prevents proper formation and expression of immunoglobins and therefore do not have adaptive immunity.

The unique antigen- reactive proteins of T cells are

Differentiate between artificial active immunity and artificial passive immunity.

Briefly explain why individuals with genetic defects that prevent neutrophil or macrophage development usually die at an early age.

_________is a non- immune person's acquisition of preformed immune cells or antibodies via natural transfer of cells or antibodies from an immune person.

Cells that can engulf foreign particles, and can ingest, kill, and digest most bacterial pathogens are called

The primary chemical mediators released from mast cells during a type I hypersensitivity reaction are ________ and_________ .

Staphylococcus aureus and Streptococcus pyogenes produce exotoxins known as superantigens that bind to a site on the TCR that is outside the antigen- specific TCR binding site.

What is tolerance, and why must the adaptive immune system exhibit tolerance?

A recombinant- vector virus would still be effective if the vaccinia virus is unable to express the cloned gene as an antigenic protein.

The life- threatening condition that may develop during a type I hypersensitivity reaction is called

The rapid increase in adaptive immunity after a second antigen exposure is called