nightingale college anatomy week11 quiz with 100% correct, Exams of Biology

Download nightingale college anatomy week11 quiz with 100% correct and more Exams Biology in PDF only on Docsity! nightingale college anatomy week11 quiz with 100% correct answers Adaptive immunity, part of the body's third line of defense, is orchestrated by two different classes of a type of white blood cell called the - answer lymphocyte The functions of the lymph nodes are - answer defense and hematopoiesis. The lymphatic system serves various functions in the body. The two most important functions of this system are - answer fluid balance and immunity. Which antibody is synthesized by immature B cells and then inserted into their plasma membranes? - answer immunoglobulin M Antibodies are proteins of the family called - answer immunoglobulins. The _____ postulates that when an antigen enters the body, it selects the clone whose cells are committed to synthesizing its specific antibody and stimulates these cells to proliferate and to thereby produce more antibodies. - answer clonal selection theory Pyrogen molecules trigger the fever response by promoting the production of - answer prostaglandins Each cortical nodule is composed of packed lymphocytes that surround a less dense area called a - answer germinal center. Lymphocytes that kill many types of tumor cells and cells infected by different kinds of viruses are known as - answer natural killer cells. Activities that result in central movement or flow of lymph are called - answer lymphokinetic activities. A tumor of the lymphoid tissue is called - answer lymphoma _____ refers to a phenomenon in which the genetic characteristics common to a particular kind of organism provide defense against certain pathogens. - answer Species resistance Bean-shaped structures located at certain intervals along the lymphatic system are - answer lymph nodes The body's defense mechanisms can be organized into one of two major categories of immune mechanisms; these are - answer innate and adaptive immunity. Masses of lymphoid tissue located in a protective ring under the mucous membranes in the mouth and the back of the throat are called - answer tonsils The presentation of an antigen by an antigen-presenting cell activates the T cell. The cell then divides repeatedly to form a clone of identical sensitized T cells that form - answer effector T cells and memory cells. Which of the following is a powerful poison that acts directly on any cell and quickly kills it? - answer lymphotoxin Molecules formed by the reactions of the complement cascade assemble themselves on the enemy cell's surface, which results in - answer cytolysis The primary organ of the lymphatic system is the - answer thymus