Chapter 20- Lymphatic System
1) Small organs associated with lymphatic vessels are termed
________.
A) lymph follicles
B) lymph nodes
C)
axillary nodes
D) cisterna chyli
B) lymph nodes
2) Which of the following would not be classified as a lymphatic
structure?
A) pancreas
B) spleen
C) tonsils
D)
Peyer's patches of the intestine
A) pancreas
3) The distal portion of the small intestine contains clumps of lymph
follicles called ________.
A) islets of Langerhans
B)
Peyer's patches
C) rugae
D) villi
B) Peyer's patches
4) Both lymph and venous blood flow are heavily dependent on
________.
A) the pumping action of the heart
B) skeletal
muscle contractions and differences in thoracic pressures due to
respiratory movement
C) contraction of the vessels themselves
D) two-way valves
B) skeletal muscle contractions and differences in thoracic pressures due to respiratory movements
5) The thymus is most active during ________.
A) fetal
development
B) childhood
C) middle age
D) old age
B) childhood
6) Which lymphatic structure drains lymph from the right upper limb
and the right side of the head and thorax?
A) lumbar
trunk
B) thoracic duct
C) right lymphatic duct
D)
cisterna chyli
C) right lymphatic duct
7) What effect does age have on the size of the thymus?
A) The
size of the thymus increases continuously from birth to death.
B) The size of the thymus decreases continuously from birth to
death.
C) The thymus is not affected by age.
D) The thymus
initially increases in size and then decreases in size from
adolescence through old age.
D) The thymus initially increases in size and then decreases in size from adolescence through old age.
8) The lymphatic capillaries are ________.
A) more permeable
than blood capillaries
B) less permeable than blood capillaries
C) equally permeable to blood capillaries
D) completely impermeable
A) more permeable than blood capillaries
9) Antibodies that act against a particular foreign substance are
released by ________.
A) T lymphocytes
B) plasma cells
C) lymph nodes
D) medullary cords
B) plasma cells
10) Lymph leaves a lymph node via ________.
A) efferent
lymphatic vessels
B) afferent lymphatic vessels
C) the
cortical sinus
D) the subscapular sinus
A) efferent lymphatic vessels
11) By secreting hormones, the thymus causes what cells to become
immunocompetent?
A) basophils
B) lymphocytes
C)
macrophages
D) monocytes
B) lymphocytes
12) Functions of the spleen include all of those below except
________.
A) removal of old or defective blood cells from the
blood
B) crypts that trap bacteria
C) storage of blood
platelets
D) storage of iron
B) crypts that trap bacteria
13) When the lymphatics are blocked due to tumors, the result is
________.
A) shrinkage of tissues distal to the blockage due to
inadequate delivery of lymph
B) severe localized edema distal to
the blockage
C) increased pressure in the lymphatics proximal to
the blockage
D) abnormally high lymph drainage from the distal region
B) severe localized edema distal to the blockage
14) Select the correct statement about lymph transport.
A)
Under normal conditions, lymph vessels are very high-pressure
conduits.
B) Lymph transport is faster than that occurring in
veins.
C) Lymph transport is only necessary when illness causes
tissue swelling.
D) Lymph transport depends on the movement of
adjacent tissues, such as skeletal muscles.
D) Lymph transport depends on the movement of adjacent tissues, such as skeletal muscles.
15) Select the correct statement about lymphocytes.
A) The two
main types are T cells and macrophages.
B) B cells produce
plasma cells, which secrete antibodies into the blood.
C) T
cells are the precursors of B cells.
D) T cells are the only
form of lymphocyte found in lymphoid tissue.
B) B cells produce plasma cells, which secrete antibodies into the blood.
16) Select the correct statement about lymphoid tissue.
A) Once
a lymphocyte enters the lymphoid tissue, it resides there permanently.
B) Lymphoid macrophages secrete antibodies into the blood.
C) Lymphoid tissue is predominantly reticular connective tissue.
D) T lymphocytes act by ingesting foreign substances.
C) Lymphoid tissue is predominantly reticular connective tissue.
17) A ring of lymphoid tissue that appears as a swelling of the
mucosa in the oral cavity is called a(n) ________.
A)
tonsil
B) thymus
C) Peyer's patch
D) appendix
A) tonsil
18) Which is not a mucosa-associated lymphatic tissue?
A)
tonsil
B) thymus
C) Peyer's patch
D) appendix
B) thymus
19) Peyer's patches are found in the ________.
A)
stomach
B) small intestine
C) large intestine
D) spleen
B) small intestine
20) Lymph collecting or pooling from the lower extremities would
first pool in the ________ before moving on up.
A) thoracic
duct
B) inguinal nodes
C) cisterna chyli
D) azygos
C) cisterna chyli
21) What is a bubo?
A) a wall in a lymph node
B) a lobe of
the spleen
C) an infected Peyer's patch
D) an infected
lymph node
D) an infected lymph node
22) What is the function of a Hassall's corpuscle?
A) It
increases the surface area of the thymic cortex.
B) It assists
in the production of lymphocytes.
C) It forms the blood-thymus
barrier.
D) It has no known significant function.
D) It has no known significant function.
23) Particularly large clusters of lymph nodes occur in all of the
following locations except the ________.
A) inguinal
region
B) cervical region
C) axillary region
D) lower extremities
D) lower extremities
24) Digestive tract-associated lymphatic tissue includes all of the
following except ________.
A) Peyer's patches
B) palatine
tonsils
C) lingual tonsils
D) islets of Langerhans
D) islets of Langerhans
25) Functions of the lymphatic system include ________.
A)
transport of excess tissue fluid to the blood vascular system
B)
transport of red blood cells to the blood vascular system
C)
maintenance of blood pressure in the venous circulation
D)
excretion of excess dietary fat
A) transport of excess tissue fluid to the blood vascular system
26) The tonsils located at the base of the tongue are the ________.
A) lingual tonsils
B) palatine tonsils
C) pharyngeal
tonsils
D) Peyer's tonsils
A) lingual tonsils
27) Which of the following is not a normal component of lymph?
A) water
B) plasma proteins
C) red blood cells
D) ions
C) red blood cells
28) A sentinel node is ________.
A) a lymph node found in the
intestinal lamina propria
B) the first node at the junction of
all the lumbar trunks
C) a small node in the spleen
D) the
first node to receive lymph from an area suspected to be cancerous
D) the first node to receive lymph from an area suspected to be cancerous
29) Peyer's patches are clusters of lymphoid tissue found primarily in the large intestine.
FALSE
30) The lymphatics function to absorb the excess protein-containing interstitial fluid and return it to the bloodstream
TRUE
31) Lymph always flows away from the heart
FALSE
32) Lymphatic capillaries are permeable to proteins
TRUE
33) Digested fats are absorbed from the intestine by the lymph capillaries.
TRUE
34) Chyle is delivered to the blood via the lymphatic system
TRUE
35) All lymphoid organs develop from mesoderm
FALSE
36) About 3 liters of fluid are lost to the tissue spaces every 24 hours and are returned to the bloodstream as lymph
TRUE
37) Because lymph vessels are very low-pressure conduits, movements of adjacent tissues are important in propelling lymph through the lymphatics
TRUE
38) Lymphoid tissue is mainly reticular connective tissue
TRUE
39) Lymphocytes reside temporarily in lymphoid tissue, then move to other parts of the body.
TRUE
40) All the lymphoid organs are well developed before birth
FALSE
41) An infected lymph gland is called a bubo
TRUE
42) The largest lymphatic vessels are called lacteals
FALSE
43) The cisterna chyli collects lymph from the lumbar trunks draining the upper limbs and from the intestinal trunk draining the digestive organs
FALSE
44) If even a small part of the spleen is left in a ten-year-old child, it will most likely regenerate itself
TRUE
The thymus lacks T cells
FALSE
I HOPE THESE NOTE CARDS ARE USEFUL TO YOUR STUDIES.
ALSO, IF THERE WERE ANY MISTAKES PLEASE SEND ME A MESSAGE & I WILL BE GLAD TO FIX IT.
GOOD LUCK ON YOUR EXAM!!
I HOPE THESE NOTE CARDS ARE USEFUL TO YOUR STUDIES.
ALSO, IF THERE WERE ANY MISTAKES PLEASE SEND ME A MESSAGE & I WILL BE GLAD TO FIX IT.
GOOD LUCK ON YOUR EXAM!!