Chapter 21: Lymphatic System Flashcards
Small organs associated with lymphatic vessels are termed ____.
a. lacteals
b. lymph follicles
c. lymphatics
d. lymph nodes
Lymph nodes
Which of the following would not be classified as a lymphatic structure?
a. spleen
b. pancreas
c. tonsils
d. Peyer’s patches of the intestine
Pancreas
Most immune responses originate in ____.
a. primary lymphoid structures
b. secondary lymphoid structures
c. the skin
d. the liver
Secondary lymphoid structures
Which cells become immunocompetent due to thymic hormones?
a. macrophages
b. monocytes
c. lymphocytes
d. basophils
Lymphocytes
Which of the following is not a part of the lymphatic system?
a. erythrocytes
b. lymphatic vessels
c. lymph
d. lymph nodes
Erythrocytes
Functions of the spleen include all of those below except
a. forming crypts that trap bacteria
b. storage of blood platelets
c. storage of iron
d. removal of old or defective blood cells from the blood.
Forming crypts that trap bacteria.
The lymphatic capillaries are ____.
a. more permeable than blood capillaries
b. completely impermeable
c. less permeable than blood capillaries
d. as permeable as blood capillaries
More permeable than blood capillaries.
Antibodies that act against a particular foreign substance are released by ____.
a. plasma cells
b. lymph nodes
c. T lymphocytes
d. medullary cords
Plasma cells
Lymph leaves a lymph node via ____.
a. afferent lymphatic vessels
b. efferent lymphatic vessels
c. the subcapsular sinus
d. the cortical sinus
Efferent lymphatic vessels
Select the correct statement about lymphocytes.
a. B cells produce plasma cells, which secrete antibodies into the blood.
b. T cells are the only form of lymphocyte found in lymphoid tissue.
c. T cells are the precursors of B cells.
d. The two main types are T cells and macrophages.
B cells produce plasma cells, which secrete antibodies into the blood.
The thymus is the only lymphoid organ that does
not ________.
a. directly fight antigens
b. have a cortex and medulla
c. produce hormones
d. have lymphocytes
Directly fight antigens
Which of the following statements regarding the thymus is not true?
a. It functions strictly in T lymphocyte maturation.
b. Its stroma consists of epithelial tissue.
c. It does not fight antigens.
d. It has follicles similar to those in the spleen.
It has follicles similar to those in the spleen.
Lymph capillaries are absent in all except which of the following?
a. bone marrow
b. digestive organs
c. bones and teeth
d. CNS
Digestive organs
Lymph transport involves all but which of the following?
a. lymph capillary minivalve action
b. smooth muscle contraction in the lymph capillary walls
c. thorax pressure changes during breathing
d. milking action of active muscle fibers
Smooth muscle contraction in the lymph capillary walls
Digestive tract-associated lymphatic tissue includes all of the following
except ________.
a. islets of Langerhans
b. palatine tonsils
c. lingual tonsils
d. Peyer’s patches
Islet of Langerhans
The tonsils located at the base of the tongue are the ________.
a. pharyngeal tonsils
b. lingual tonsils
c. palatine tonsils
d. Peyer’s tonsils
Lingual tonsils
Select the correct statement about lymph transport.
a. Lymph transport is only necessary when illness causes tissue swelling.
b. Under normal conditions, lymph vessels are very high-pressure conduits.
c. Lymph transport depends on the movement of adjacent tissues, such as skeletal muscles.
d. Lymph transport is faster than that occurring in veins.
Lymph transport depends on the movements of adjacent tissues, such as skeletal muscles.
Which of the following are functions of lymphoid tissue?
a. house and provide a proliferation site for lymphocytes
b. house and provide a proliferation site for neutrophils
c. furnish an ideal surveillance vantage point for lymphocytes and macrophages
d. A and C
A and C
Which of the following is
not a normal component of lymph?
a. red blood cells
b. water
c. ions
d. plasma proteins
Red blood cells
Which of the following is not a function of lymph nodes?
a. act as lymph filters and activate the immune system
b. produce lymph fluid and cerebrospinal fluid
c. serve as antigen surveillance areas
d. produce lymphoid cells and house granular WBCs
Produce lymph fluid and cerebrospinal fluid.
Which of the following is
not a function of the lymphatic system?
a. transporting respiratory gases
b. transporting dietary fats
c. draining excess interstitial fluid
d. carrying out immune responses
Transporting respiratory gases.
Large clusters of lymph nodes occur in all of the following locations
except the ________.
a. lower extremities
b. cervical region
c. inguinal region
d. axillary region
Lower extremities
Which lymphatic structure drains lymph from the right upper limb and the right side of the head and thorax?
a. thoracic duct
b. right lymphatic duct
c. cisterna chyli
d. lumbar trunk
Right lymphatic duct
Which of the following is associated with passive immunity?
a. exposure to an antigen
b. passage of IgG antibodies from a pregnant mother to her fetus
c. infusion of weakened viruses
d. booster shot of vaccine
Passage of IgG antibodies from a pregnant mother to her fetus.
Which of the following is not a type of T cell?
a. helper
b. cytotoxic
c. regulatory
d. antigenic
Antigenic
