HUMAN ANATOMY - 180 DAY EBOOK
5th Edition
ISBN: 9781260942767
Author: McKinley
Publisher: Macmillan Higher Education
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Chapter 24, Problem 4MC
What is the function of the blood-thymus barrier?
| a. | It protects maturing T-lymphocytes from antigens in the blood. |
| b. | It filters the blood and starts an immune response when necessary. |
| c. | It subdivides the thymus into a cortex and a medulla. |
| d. | It forms thymic corpuscles. |
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How is the cytotoxic T cell mechanism of action similar to that of complement?
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C.
Cytotoxic T cells activate B cells to produce antibodies.
D.
Cytotoxic T cells are antigen-presenting cells similar to the complement proteins found on B cells.
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Chapter 24 Solutions
HUMAN ANATOMY - 180 DAY EBOOK
Ch. 24 - What is the immune response, and how does the...Ch. 24 - What is lymph?Ch. 24 - Prob. 3WYLCh. 24 - Prob. 4WYLCh. 24 - Prob. 5WYLCh. 24 - Prob. 6WYLCh. 24 - Prob. 7WYLCh. 24 - Prob. 8WYLCh. 24 - Prob. 9WYLCh. 24 - Describe the basic structure and function of a...
Ch. 24 - How do the white pulp and red pulp of the spleen...Ch. 24 - Prob. 12WYLCh. 24 - Prob. 13WYLCh. 24 - Prob. 1MCh. 24 - Prob. 1MCCh. 24 - Which type of lymphatic cell is responsible for...Ch. 24 - Which statement is false about lymphatic nodules?...Ch. 24 - What is the function of the blood-thymus barrier?...Ch. 24 - Prob. 5MCCh. 24 - Which statement is true about lymph nodes? a....Ch. 24 - Prob. 7MCCh. 24 - Prob. 8MCCh. 24 - The primary lymph sacs form the a. thoracic duct....Ch. 24 - What change occurs to the adult lymphatic system...Ch. 24 - Prob. 1CRCh. 24 - Describe what lymph is, and draw a flowchart that...Ch. 24 - Prob. 3CRCh. 24 - Prob. 4CRCh. 24 - Prob. 5CRCh. 24 - Prob. 6CRCh. 24 - Describe how the thymuss anatomy and function...Ch. 24 - Prob. 8CRCh. 24 - Compare and contrast the red and white pulp of the...Ch. 24 - Prob. 10CRCh. 24 - Prob. 1DCRCh. 24 - Prob. 2DCRCh. 24 - Prob. 3DCR
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- Which statement is accurate about lymph nodes? a. Lymph nodes do not become swollen and tender. b. Lymph nodes filter blood. c. Lymph enters the lymph node through afferent lymphatic vessels. d. Lymphatic sinuses are located in the cortex of a lymph node only.arrow_forwardWhich of these statements about gamma interferon is false? a. It is a polypeptide autocrine regulator. b. It can be produced in response to viral infections. c. It stimulates the immune system to attack infected cells and tumors. d.It is produced by almost all cells in the body.arrow_forwardHow are neutrophils targeted from the blood vessels to the sites of inflammation? A. they bind to antigens presented by infected vascular endothelial cells B. they respond to signaling molecules released at the site of inflammation C. they are attracted to DNA or RNA fragments leaking into the blood vessel at sites of inflammation D. they sense nearby disturbances in the body's physiologyarrow_forward
- Which type of immune response works in concert withcytotoxic T cells against virally infected cells?a. natural killer cellsb. complementc. antibodiesd. memoryarrow_forwardWhy is the fact that the patient has no spleen important? A. The spleen is the site of B cell production. B. The spleen recognizes foreign antigens. C. The spleen regulates blood pressure. D. The spleen contains cells of the immune system like B and T cells.arrow_forwardWhich statement is true about lymph nodes?a. Cancerous lymph nodes are swollen and tender tothe touch.b. The medulla of a lymph node contains lymphatic nodules.c. Lymph enters the lymph node through afferent lymphaticvessels.d. Lymphatic sinuses are located in the cortex of a lymphnode only.arrow_forward
- Which event happens first during cytotoxic T-cell activation? a. Cytotoxic T cells secrete perforin and granzyme. b. Cytotoxic T cells recognize foreign antigen presented on the surface of a MHC I molecule. c. Cytotoxic T cells proliferate to form many new cells specific for the same antigen d. Cytotoxic T cells recognize foreign antigen presented on the surface of a TCR.arrow_forwardSuppose a person recovers normally from viral infections, but then gets the same viral infections over and over again- unlike the rest of us. A. What is probably wrong –B cells, helper T cells and/or cytotoxic T cells? B. Should this person be at a higher risk of cancer than the rest of us? C. Should this person be able to lyse bacterial cells as well as the rest of us? D. Should this person tolerate a graft (from an unreated person) better than you are me?arrow_forwardSome individuals are immune-compromised because their bodies do not make enough T-cells. What is the difference between a T-cell and any other cell type in the body? a. T-cells have different genomes than cells of other types b. T-cells have different genes than cells of other types c. T-cells have different proteins than cells of other typesarrow_forward
- Which is/are function(s) of the lymphatic system? a. Hemopoiesis b. Inspect lymph for pathogens c. Regulation of blood pressure d. Collect interstitial fluid and return it to the blood circulatory systemarrow_forwardHow do corticosteroids act to block inflammation? a. Blocking neutrophil migration b. Blocking mast cells degranulation c. Blocking macrophage activation d. Blocking the synthesis of arachidonic acidarrow_forwardWhat's the interior of a lymph node, consisting of lymphatic sinuses, called ? A. Capsule B. Afferent C. Medulla D. Lymphoid folliclesarrow_forward
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