Lymph Vessels Quiz

1. What percentage of interstitial fluid is moved to the lymph vessels without being recycled into the blood vessels?

• 10
• 20
• 80
• 90

2. Which of the following is true of lymph capillaries?

• They are under high pressure and lymph is actively pumped
• They have dead ends.
• The lymph within them moves in many different directions.
• All of the above

3. Which of the following structures are considered lymph organs?

• spleen
• Peyer's patches
• appendix
• thymus gland

4. Which of the following structures are considered lymph nodules?

• tonsils
• spleen
• Peyer's patches
• thymus gland

5. The ducts that return lymph to the cardiovascular system are the right ______________ duct and the _____________duct.

6. Which structure is absent in lymph nodules but present in lymph nodes and lymph organs?

• vessels
• capsule
• germination center
• sinuses

7. Why do lymph nodes have fewer efferent vessels (outgoing) than afferent vessels (incoming)?

• To speed up the flow of lymph through the lymph node
• To slow down the flow of lymph throug the lymph node
• To allow more time for lymphocytes to "clean" the lymph
• Because some of the lymph permanently stays in the lymph node

8. Which number represents the germinal center?

• 1
• 3
• 2