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Phys week 11 - Lymph
Chapters 31, 32, 33 - Lymphatic and Immune System
| Video: Lymph is filtered by the | lymph nodes |
| Video: The lymphatic organs produce | lymphocytes |
| Video: The purpose of the lymphatic system is to | fight against infection |
| Video: Fluid that is clear, watery and contains protein molecules, salts, and other substances is called | intercellular fluid |
| Video: The lymphatic system is made up of lymphatic vessels where lymph flows in only one direction towards | the heart |
| Video: The T cell is considered | the communicator |
| Millions of B cells release millions of | antibodies |
| The function of which antibody is basically unknown? | IgD. Immunoglobulin D (IgD) |
| 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. | clonal selection theory |
| Complement can best be described as a(n): | enzyme in blood. |
| _____ refers to a phenomenon in which the genetic characteristics common to a particular kind of organism provide defense against certain pathogens. | Species resistance |
| The movement of phagocytes from blood vessels to an inflammation site is called | Diapedesis |
| Which protein interferes with the ability of viruses to cause disease? | interferon |
| Because T cells attack pathogens more directly, T-cell immune mechanisms are classified as _____ immunity. | cell-mediated |
| 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 | effector T cells and memory cells. |
| Memory cells: | become plasma cells when exposed to an antigen. |
| The body’s defense mechanisms can be organized into one of two major categories of immune mechanisms; these are | innate and adaptive immunity. |
| The functions of the lymph nodes are | defense and hematopoiesis. Hematopoiesis is the process by which all types of blood cells are formed in the body. |
| 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. |
| During their residence in the thymus, pre-T cells develop into _____, cells that proliferate as rapidly as any in the body. | thymocytes |
| _______ is the only antibody class with the ability to cross the placental barrier, providing passive immunity to the developing fetus during pregnancy. | IgG. Immunoglobulin G (IgG) |
| Pyrogen molecules trigger the fever response by promoting the production of | prostaglandins |
| The ingestion and destruction of microorganisms or other small particles is called | phagocytosis |
| Which of these substances operate(s) immune mechanisms? | sebum mucus enzymes hydrochloric acid in gastric mucosa all of the above Answer: All of the above |
| Recognition of antigens by antibodies occurs when an | antigen’s epitopes fit into and bind to an antigen molecule’s antigen-binding site. |
| What is the function of the spleen? | tissue repair hematopoiesis red blood cell and platelet destruction blood reservoir all of the above Answer: All of the above |
| Molecules formed by the reactions of the complement cascade assemble themselves on the enemy cell’s surface, which results in | cytolysis |
Created by:
prispeguero
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