Which of the following is the first process to occur as the flow of lymph enters a lymph node?
A) It is always from the inner tissues toward the exterior, as the incoming vessels enter the node and pass to its center prior to releasing their flow of lymph.
B) It passes through a network lymphoid cells.
C) It occurs from efferent lymphatic vessels through the nodal tissues to afferent lymphatics.
D) It always triggers the activation of the immune response; if no infectious agents are present lymph is channeled around the nodes rather than through them.
E) All of the answers are correct.
B) It passes through a network lymphoid cells.
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