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Where are the palatine tonsils located?


A) The roof of the nasopharynx
B) Laterally in the oropharynx
C) At the root of the tongue
D) None of these are correct.

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What type of T cells are important for nonspecific defense and specific immunity by recognizing foreign pathogens and activating the cells to fight them?


A) T Cytotoxic cells
B) T Helper cells
C) T Memory cells
D) T Regulatory cells

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Aiden is a 4 month old baby boy.When he was born his mother decided to breast feed him,instead of using formula.What type of immunity will baby Aiden develop from receiving mom's antibodies through her breast milk?


A) Natural active immunity
B) Natural passive immunity
C) Artificial active immunity
D) Artificial passive immunity

Correct Answer

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What is the function of Peyer's patches?


A) Stand guard against and fight any pathogens trying to enter the body.
B) Fight any bacteria moving into the small intestine from the colon.
C) Remove anything that may be potentially harmful in lymph.
D) Guard against pathogens entering the body through the nose or mouth.

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Which type of B cell constantly samples material from their environment,processes it,and then displays it for other cells to see?


A) BPlasma cells
B) BMemory cells
C) APCs
D) None of these are correct.

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Which of the following falls under the second line of defense?


A) Inflammation
B) Mucous membranes
C) Tears
D) Mucus

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Where do the thoracic and right lymphatic ducts deliver lymph?


A) Aorta
B) Inferior vena cava
C) Subclavian vein
D) None of these are correct.

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Which of the following statements about humoral immunity is false?


A) Humoral immunity involves B cells making antibodies.
B) Plasma B cells produce specific antibodies.
C) Humoral immunity begins when an APC in lymphoid tissue displays an epitope from its environment on an MHC protein.
D) Humoral immunity is also called cell-mediated immunity.

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Which of the following statements about lymph and lymph vessels is false?


A) Lymph leaves the system of blood vessels through the capillaries due to blood pressure.
B) Lymph returns to the cardiovascular system through a network of open lymph capillaries and vessels that drain the tissues of lymph.
C) Valves inside the lymph vessels direct the flow of lymph in either direction.
D) Lymph vessels eventually drain into one of two collecting ducts, the thoracic duct and the right lymphatic duct.

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In humoral immunity,B cells clone themselves in the germinal centers of the lymphatic nodules to become what two types of cells?


A) Natural killer cells and helper cells
B) Natural killer cells and memory cells
C) Helper cells and plasma cells
D) Plasma cells and memory cells

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All of the following are functions of inflammation except which one?


A) Trap microbes.
B) Remove debris and damaged tissue.
C) Limit the spread of pathogens.
D) Initiate tissue repair.

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Which of the following are functions of the lymphatic system?


A) Fluid balance
B) Lipid absorption
C) Defense against disease
D) All of the answers are correct.

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Which type of B cell is important in specific immunity because they produce antibodies,which are dissolved proteins in plasma that seek out specific foreign antigens for their destruction?


A) BPlasma cells
B) BMemory cells
C) APCs
D) None of these are correct.

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Which of the following is not a category of cells found in the lymphatic system?


A) Natural killer cells
B) T lymphocytes
C) B lymphocytes
D) Monocytes

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What causes acquired immunodeficiency syndrome?


A) Lymphadenitis
B) Elephantiasis
C) Allergies
D) HIV

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Which of the following is not considered part of the nonspecific resistance?


A) External barriers
B) Inflammation
C) Specific immunity
D) Fever

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T-cells migrate from the red bone marrow to what organ to mature?


A) Spleen
B) Tonsils
C) Thymus
D) Peyer's patches

Correct Answer

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Which cells are involved in both humoral and cellular immunity?


A) Thelper cells
B) Tcytotoxic cells
C) Plasma cells
D) Memory cells

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How long does it take for humoral immunity to accomplish antibody production in the first exposure to the pathogen?


A) 3-6 days
B) 2-5 days
C) 13-16 days
D) None of these are correct.

Correct Answer

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What lymphoid tissue is scattered throughout the mucous membranes lining tracts to the outside environment?


A) MALT
B) Peyer's patches
C) Lymph nodes
D) Tonsils

Correct Answer

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