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Chp. 22 Lymphatic System and Immunity - Wiley Plus HW
Terms in this set (42)
Which of the following is not true of lymph and the lymphatic system?
Lymph is found in the intercellular fluid
All of the following are true of lymphatic vessels except:
Are called lacteals in the mammary glands
The area drained by the thoracic duct is:
Both lower limbs, lower trunk, left side of head and neck, left upper limb
Which statement accurately describes the thymus?
Is located between the upper portion of the lungs
The organ that is not a secondary lymphatic organ is ?
Red bone marrow
Which of the following is not a defense barrier involved with innate defenses?
-fluids secreted by the lacrimal apparatus
-flow of urine
-all of these choices are protective barriers
**all of theses choices are protective barriers
Which of the following is not part of the immune defense system?
Which is not true in the comparison of natural killer (NK) cells and phagocytes?
NK cells identify B and T cells
Which is not a sign or symptom of inflammation?
Contracture of tissue
The development of the ability to carry out immune responses by certain cell is called?
Which of the following is not a characteristic of the major histocompatibility complex (MHC) antigens?
Mark each body cell surface except the white blood cells
Which antigen is not considered an exogenous antigen?
Which is not true of the cytokines:
Are secreted by erythrocytes
A secondary invasion of an antigen may produce no signs or symptoms due to the action of:
Which statement is false regarding cytotoxic T cells?
Each cytotoxic T cell "dies" after inactivating an antigen
Transplant recipients of immunosuppressive drugs are more susceptible ot certain cancers due to immunological surveillance.
The most abundant class of immunoglobulins is
Which of the following is not considered an antibody actin to disable antigens
Deactivates the complement system
Which statement is true about immunological memory?
The use of vaccinatins is based on the concept of immunological memory
The lack of reactivity to the body's own proteins is know as:
Which of the following negatively affects the immune system?
-lack of sleep
-all of these choices
**all of these choices
Which of the following is false regarding aging on the immune system?
Produce fewer autoantibodies
What lymphatic structure is the arrow in the diagram to the right pointing to?
Cisterna chyli (lymph woman)
Which is not a function of the lymphatic system?
-carry out immune responses
-drain excess interstitial fluid
-transport dietary lipids
-all of these choices are functions of the lymphatic system
-none of these choices are functions of the lymphatic system
**all of these choices are functions of the lymphatic system
ALSO(transporting dietary fats;
NOT---TRANSPORTING RESPIRATORY GASES;
draining excess interstitial fluid;
carrying out immune responses)
After absorption in the small intestine, fats would enter travel through the
Lacteals, intestinal trunk, cisterna chyli, thoracic duct, internal jugular and sublclavian vein juncture
Lymph and plasma have essentially the same composition except for the absence of clotting factors in lymph.
Which of the following is considered a primary lymphoid organ?
Which of the following would be considered a first line of defense in innate immunity?
____________are actively phagocytic cells.
1 and 2
1. macrophages and 2. Neutrophils
Listed below are signs and symptoms of inflammation matched with a cause. Which of the pairs is INCORRECTLY matched?
Swelling: decreased capillary permeability
While the processes of innate and adaptive immunity may interact or overlap, only adaptive immunity has the properties of specificity and memory.
CD4 T cells acquire immunocompetence in the
An immunoglobulin molecule inserted in the membrane of an immunocompetent B cell binds to a glycoprotein on a bacterial cell membrane. This immunoglobulin molecule would be considered a(n).
Although Class II MHC molecules are found primarily on antigen-presenting cells and activated T cells, Class I MHC molecules are found on nucleated cells in the body. This allows the immune system to recognize pathogens but to ignore innocuous substances because.
1. Most microbes infect body cells other than antigen-presenting cells.
2. Requiring APC and Class II MHC for presentation insures that T cells only respond top properly presented exogenous antigens.
3. B cells can be stimulated by cytokines from T cells in order to respond to antigens.
1, 2 and 3 are correct.
The first signal required for activation of a T cell is
Binding of antigen of the TCR
Cytotoxic T cells may kill infected target cells by
1. Inducing apoptosis in the target cell.
2. Creating channels in the target cell membrane.
3. Releasing antibodies which coat the target cells.
1 and 2 are correct
Which is NOT a function a antibodies?
-agglutinate or precipitate antigen
-all of these choices are functions of antibodies
**all of these choices are functions of antibodies
You ate some contaminated shellfish and have developed a hepatitis A infection. Your physician injections you with gamma globulin which contains antibodies to hepatitis A. This is an example of
Artificially acquired passive immunity
Which is NOT true about complement?
Activation of complement requires interaction with T helper cells
Which statement is NOT true about IgM?
It is a dimer
All antibodies have constant and variable regions in each of their heavy and light chains. The constant region determines the class of the antibody.
Which in NOT involved in activation of a T helper cell?
Binding of the T helper cell to a MHC class 1 antigen
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