McGraw-Hill Online Learning Center Test<BLURT>

McGraw-Hill Online Learning Center Test

1. Review the animation and answer the following questions.

The role of the lymphatic system is to

A. filter and return tissue fluid that has leaked from capillaries.
B. filter and return blood to the systemic circulation.
C. remove blood from the circulatory system when blood volume gets too large.
D. house progenitors to phagocytic cells to combat infection.

2. The last stop for the lymph before reentering the systemic circulation is A. several lymph nodes.
B. entry into the lymphatic vessels through the walls.
C. the thoracic duct.
D. the thymus.

3. Swelling of the lymph nodes occurs because A. the amount of lymph is very large.
B. accumulation of bacteria and viruses causes the node to expand.
C. more protein is lost from the circulatory system and winds up in the nodes.
D. of multiplication of white blood cells in the node to fight an infection.

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