Which of the following factors accounts for the fact that the passage of lymph through a lymph node is slowed down to allow time for cleansing action?
A) There are more afferent vessels than efferent vessels.
B) There are valves where the afferent vessels enter the node to regulate the flow of lymph.
C) Lymph nodes are located where flow is naturally slow because there is no pressure gradient.
D) There is no resistance to flow in the lymph nodes, consequently there is no pressure and rate of flow is reduced.

Question

Quizplus · Accepted Answer

The presence of more afferent vessels (bringing lymph into the node) than efferent vessels (carrying lymph away) in a lymph node creates a bottleneck effect, slowing down the flow of lymph through the node. This allows more time for the lymph to be cleansed of debris and pathogens.

Which of the Following Factors Accounts for the Fact That