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Anatomy Week 11
Quiz Questions - Assignment 2
| Question | Answer |
|---|---|
| What says that when an antigen enters the body, it selects the clone whose cells synthesize its specific antibody and produce more antibodies. cell-mediated immunity theory complement theory clonal selection theory monoclonal selection theory | clonal selection theory |
| Pyrogen molecules trigger the fever response by promoting the production of: leukotrienes. prostaglandins. antibodies. cytokines. | prostaglandins. |
| Activities that result in central movement or flow of lymph are called: lymph mechanisms. lymphokinetic activities. lymphatic activities. none of the above. | lymphokinetic activities. |
| Which of the following is a powerful poison that acts directly on any cell and quickly kills it? cytotoxin phagotoxin lymphotoxin granulotoxin | lymphotoxin |
| ____ refers to a phenomenon in which the genetic characteristics common to a particular kind of organism provide defense against certain pathogens. Inflammatory response Antigen resistance Immunity resistance Species resistance | Species resistance |
| The ingestion and destruction of microorganisms or other small particles is called pinocytosis. exocytosis. apedesis. phagocytosis. | phagocytosis |
| The internal environment of the human body is protected by the _____, which is(are) referred to as the first line of defense. skin connective tissue white blood cells muscle tissue | Skin |
| Which protein interferes with the ability of viruses to cause disease? natural killer cells! interferon macrophage viral enzyme | Interferon |
| A tumor of the lymphoid tissue is called lymphangitis. lymphedema. lymphoma. none of the above. | Lymphoma |
| The presentation of an antigen activates the T cell which divides repeatedly to form a clone of identical T cells that form: effector T cells and cytokines effector T cells and memory cells memory cells and cytokines memory cells and interleukins | effector T cells and memory cells. |
| Masses of lymphoid tissue located in a protective ring under the mucous membranes in the mouth and the back of the throat are called lymphatic capillaries. lymph nodes. tonsils. anastomoses. | Tonsils |
| The body’s defense mechanisms can be organized into one of two major categories: species resistance and specific immunity mechanical and chemical barriers innate and adaptive immunity nonspecific and inflammatory immunity | innate and adaptive immunity. |
| Recognition of antigens by antibodies occurs when an: | Antigen's epitopes fit into and bind to an antibody molecule's antigen-binding sites |
| Which antibody is synthesized by immature B cells and then inserted into their plasma membranes? immunoglobulin M immunoglobulin G immunoglobulin A immunoglobulin E immunoglobulin D | immunoglobulin M |
| The lymphatic system serves various functions in the body. The two most important functions of this system are fluid balance and waste removal. fluid balance and immunity. immunity and waste removal. waste removal and gas exchange. | fluid balance and immunity. |
| Which organ has several functions, including defense, hematopoiesis, red blood cell and platelet destruction, and blood reservoir? thymus thyroid spleen thalamus | Spleen |
| During their residence in the thymus, pre-T cells develop into _____, cells that proliferate as rapidly as any in the body. cytotoxic T cells antigen-presenting cells thymocytes memory T cells | thymocytes |
| Molecules formed by the reactions of the complement cascade assemble themselves on the enemy cell’s surface, which results in: cytolysis. crenation. apoptosis. hemolysis. | cytolysis |
| Because T cells attack pathogens more directly, T-cell immune mechanisms are classified as _____ immunity. antibody-mediated cell-mediated nonspecific None of the above are correct. | cell-mediated |
| Chemotaxis is the process by which a cell navigates toward the source of the chemotactic factor by way of? | detecting and then moving toward higher concentrations of the factor. |
| Antibodies are proteins of the family called glucoproteins. immunoglobulins. globulins. antigens. | immunoglobulins. |
| The movement of phagocytes from blood vessels to an inflammation site is called phagocytosis. pavementing. diapedesis. apedesis. | diapedesis. |
| Which of these substances operate(s) immune mechanisms? sebum mucus enzymes hydrochloric acid in gastric mucosa all of the above | All of the above |
| Lymphatics in the villi of the small intestines are called lymph nodes. cortical nodules. lacteals. lymphatic ducts. | Lacteals |
| Each cortical nodule is composed of packed lymphocytes that surround a less dense area called a germ center. trabecula. lymph node. germinal center. | germinal center. |
| The functions of the lymph nodes are defense and hemostasis. defense and diapedesis. defense and hematopoiesis. hematopoiesis and hemostasis. | defense and hematopoiesis. |
| The primary organ of the lymphatic system is the thalamus. thyroid. thymus. spleen. | Thymus |
| Lymphocytes that kill many types of tumor cells and cells infected by different kinds of viruses are known as phagocytes. leukocytes. natural killer cells. macrophages. | Natural killer cells |
| 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 leukocyte. macrophage. lymphocyte. phagocyte. | lymphocyte |
| Bean-shaped structures located at certain intervals along the lymphatic system are lymphatic capillaries. lymph nodes. lymph valves. lacteals. | lymph nodes. |
Created by:
melaniegranato
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