LooseLeaf for Human Anatomy
5th Edition
ISBN: 9781259285271
Author: Michael McKinley Dr., Valerie O'Loughlin, Elizabeth Pennefather-O'Brien
Publisher: McGraw-Hill Education
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Textbook Question
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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Students have asked these similar questions
What change occurs to the adult lymphatic system as we getolder?a. The body produces and transports less lymph.b. Greater numbers of B-lymphocytes are produced.c. Helper T-lymphocytes do not respond as well to antigens.d. The lymph nodes enlarge.
Which cells produce antibodies?
a. Neutrophils.
b. Dendritic cells.
c. Cytotoxic T cells.
d. Plasma cells.
The role of the humoral immune response is to
a. kill infected cellsb. fight pathogens found in body fluid
c. prevent pathogens from entering the body
d. initiate an inflammatory response
How is the cytotoxic T cell mechanism of action similar to that of complement?
A.
Cytotoxic T cells secrete the proteins that activate complement.
В.
Cytotoxic T cells induce cell lysis with perforin, a protein similar to complement's MAC.
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.
Chapter 24 Solutions
LooseLeaf for Human Anatomy
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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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- in antibody-mediated immunity, what happens immediately after B cells are activated? a. the foreign antigen-MHC complex is displayed on the cell surfaces. b. activated T helper cells interact with the B cells. c. the B cells are cloned. D. antibodies combine with antigens on the pathogen surface.arrow_forwardWhich immune cells circulate in the body, providing immunity by producing antibodies? A. T-cells, B. Antigens, C. B-cells, D. Lymph Nodesarrow_forwardDuring which stage of life is the thymus most active? A. Pregnancy B. Adolescence . C. Infancy O D. Reproductionarrow_forward
- 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_forwardWhich type of immune response works in concert withcytotoxic T cells against virally infected cells?a. natural killer cellsb. complementc. antibodiesd. memoryarrow_forward
- How 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_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
- Select the correct one. In antibody-mediated immunity, what happens immediately after B cells are activated? a. the foreign antigen-MHC complex is displayed on the cell surfaces. b. activated T helper cells interact with the B cells. c. the B cells are cloned. D. antibodies combine with antigens on the pathogen surface.arrow_forwardWhich 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_forwardWhich type of immune response is most directlyeffective against bacteria?a. natural killer cellsb. complementc. cytotoxic T cellsd. helper T cellsarrow_forward
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