41. Immune System

If microorganisms penetrate the innate defenses, an inflammatory response may be initiated by the __________.

In humans, the first line of defense against infection is __________.

Innate immunity includes all of the following except:

Which of the following cells are part of the innate, second line of defense?

Which of the following accurately describes innate immunity?

Chemicals produced by virus-infected cells that alert neighboring cells to prepare a defense are called __________.

Which of the following is an immediate function of histamine?

What is the primary difference between the innate and adaptive immune responses?

Innate immunity includes ______.

In insects, which of the following is analogous to mammalian epithelial tissue, in that it serves as a first line of defense against infection?

Local swelling, increased blood flow, and fever are all parts of __________.

Innate immunity is ______.

Which of the following is part of the inflammatory response?