41. Immune System

Which statement describes what would most likely happen to microbes in the blood?

Which of the following is the main factor that causes lymph to move through lymphatic vessels?

Phagocytosis is best defined as __________.

What do macrophages and neutrophils have in common?

Which type of cell is responsible for causing apoptosis in cancer cells and virus-infected cells?

Which molecules trigger the adaptive immune response?

Which of the following types of cells initiate a secondary immune response?

B lymphocytes __________.

In a series of immune system experiments, the thymus glands were removed from baby mice. Which of the following would you predict as a likely result?

Antibodies are in which class of proteins?

Which choice below describes a function of white blood cells that helps them carry out defensive functions more effectively?

Complete this concept map to summarize the key concepts concerning the body's defenses.

Foreign molecules that elicit an immune response are called a. major histocompatibility complex (MHC) molecules. b. antibodies. c. histamines. d. antigens.