Lymphatic Flashcards
Which of the following functions of the lymphatic system ensures that tissues are not damaged due to accumulation of excess fluid?
A. Fluid balance
B. Lipid Absorption
C. Defense
D. All of the choices are correct
A. Fluid balance
Which of the following statements concerning lymph is TRUE?
A. Lymph is formed from a watery filtrate produced by the kidneys
B. Lymph is formed from excess interstitial fluid that fails to reenter the blood circulation
C. Lymph forms within the red bone marrow and functions to defend the body against viral infections
D. Lymph is secreted by the serous membranes of the body into closed cavities that contain organs
B. Lymph is formed from excess interstitial fluid that fails to reenter the blood circulation
Lymphatic fluid collected from the upper right side of the head would enter the venous circulation through the _____
A. thoracic duct
B. Right Lymphatic duct
C. Right Thoracic duct
D. none
B. Right Lymphatic duct
The primary function of the tonsils is to
A. protect against foreign particles and microorganisms entering the body through the nose and mouth
B. indicate whether or not a person has “strep throat”
C. produce mucus to trap dust particles that enter through inhaled air
D. detect the amount of water present in ingested material
A. protect against foreign particles and microorganisms entering the body through the nose and mouth
The structures that filter lymph are called _______.
A. tonsils
B. lymph nodes
C. spleens
D. Both “lymph nodes” and “spleens” are correct
B. lymph nodes
One of the primary functions of the spleen is to
A. filter the lymph
B. produce B lymphocytes
C. filter the blood
D. produce the plasma proteins
C. filter the blood
Which of the following statements is the meaning of specificity, in relation to immunity?
A. Only the T lymphocytes responds to virus-infected cells
B. Cells of adaptive immunity recognize particular substances
C. Each T cell has a specific area of the body that it defends
D. Secondary responses occur only during specific ages, usually after the age of 45
B. Cells of adaptive immunity recognize particular substances
Which of the following is NOT a physical barrier of innate immunity?
A. Skin
B. Tears
C. Mucous membranes
D. The skin, tears, and mucous membranes are all physical barriers of innate immunity
D. The skin, tears, and mucous membranes are all physical barriers of innate immunity
Which of the following is released by cells infected by viruses to stimulate neighboring cells to produce antiviral proteins?
A. Complement
B. Interferon
C. Antibodies
D. All of the choices are correct
B. Interferon
Lymphocytes that are part of innate immunity and recognize and destroy tumor cells or virus-infected cells:
A. Neutrophils
B. Natural killer cells
C. Basophils
D. Helper T cells
B. Natural killer cells
Which of the following are the cardinal signs of local inflammation?
A. Redness, swelling, chills, pain
B. Redness, itch, swelling, heat
C. Redness, swelling, heat, pain
D. Redness and swelling only
C. Redness, swelling, heat, pain
__________ are substances either introduced to the body or produced by the body that stimulate adaptive immune responses
A. Antibodies
B. Antigens
C. Interferons
D. Pyrogens
B. Antigens
_________ are lymphocytes that mature in the bone marrow, whereas ______ are lymphocytes that mature in the thymus
A. T cells; B cells
B. B cells; NK cells
C. B cells; T cells
D. T cells; NK cells
C. B cells; T cells
Cells that respond to specific intracellular antigens are considered part of _________ immunity
A. antibody-mediated
B. innate
C. cell-mediated
D. Both “innate” and “cell-mediated” are correct
C. cell-mediated
Antibody-mediated immunity involves the _______ lymphocytes, which, when activated, produce _________ that ultimately produce antibodies
A. helper T cells; B cells
B. B cells; cytotoxic T cells
C. B cells; plasma
C. cytotoxic T cells; B cells
C. B cells; plasma
