How do lymphatic vessels differ from those of either the arterial or the venous system
A) They do not run together with either the arteries or the veins.
B) The lymphatic valves are spaced close enough to give the vessel the appearance of a string of beads.
C) They have fewer valves than do the veins.
D) They have thicker walls than veins, but less thick than those of the arteries.
E) They have very few significant differences.
Correct Answer:
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Q12: Compared to regular capillaries, lymphatic capillaries are
A)much
Q13: Lipids absorbed in the digestive tract enter
Q14: Large lymphatic trunks and ducts are located
A)in
Q15: Which lymphatic vessels drain into the venous
Q16: Lymphatic trunks collect lymph from
A)lacteals.
B)superficial lymphatics.
C)deep lymphatics.
D)both
Q18: Most immune responses originate in
A)primary lymphoid structures.
B)macrophages.
C)the
Q19: The lymphoid system is composed of
A)lymph.
B)the spleen.
C)lymph
Q20: Most of the lymph returns to the
Q21: T cells
A)include approximately 10-15 percent of the
Q22: NK cells attack
A)virus-infected cells.
B)cancer cells.
C)foreign cells.
D)All of
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