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A&P Chapters 20 and 21 Questions and
Correct Answers/ Latest Update /
Already Graded
Small organs associated with lymphatic vessels are termed ________.
A) lymph follicles
B) lymph nodes
C) axillary nodes
D) cisterna chyli
Ans: B
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
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Ans: A
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
Ans: B
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
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D) two-way valves
Ans: B
The thymus is most active during ________.
A) fetal development
B) childhood
C) middle age
D) old age
Ans: B
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
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Ans: c
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.
Ans: D
The lymphatic capillaries are ________.
A) more permeable than blood capillaries
B) less permeable than blood capillaries
C) as permeable as blood capillaries
D) completely impermeable
A&P Chapters 20 and 21 Questions and
Correct Answers/ Latest Update /
Already Graded
Small organs associated with lymphatic vessels are termed ________.
A) lymph follicles
B) lymph nodes
C) axillary nodes
D) cisterna chyli
Ans: B
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
,2 | Page
Ans: A
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
Ans: B
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
,3 | Page
D) two-way valves
Ans: B
The thymus is most active during ________.
A) fetal development
B) childhood
C) middle age
D) old age
Ans: B
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
, 4 | Page
Ans: c
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.
Ans: D
The lymphatic capillaries are ________.
A) more permeable than blood capillaries
B) less permeable than blood capillaries
C) as permeable as blood capillaries
D) completely impermeable
