Multiple Choice
Which of the following options correctly represents the flow of lymph through a lymph node?
20. The Lymphatic System
Secondary Lymphoid Organs: Lymph Nodes
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Which of the following lists the correct order of lymph flow through the lymph node?
A
subcapsular sinus, efferent vessel, afferent vessel, medullary sinuses
B
medullary sinuses, efferent vessel, afferent vessel, subcapsular sinus
C
efferent vessel, subcapsular sinus, medullary sinuses, afferent vessel
D
afferent vessel, subcapsular sinus, medullary sinuses, efferent vessel
Verified step by step guidance1
Understand the function of a lymph node: Lymph nodes filter lymph fluid, trapping bacteria and other foreign particles, and are an integral part of the immune system.
Identify the entry point: Lymph enters the lymph node through the afferent lymphatic vessels. These vessels bring lymph fluid from the tissues into the node.
Trace the path through the node: Once inside, lymph flows into the subcapsular sinus, which is a space just beneath the capsule of the lymph node.
Follow the flow deeper: From the subcapsular sinus, lymph moves into the medullary sinuses. These are channels within the lymph node where further filtration occurs.
Determine the exit point: After passing through the medullary sinuses, lymph exits the lymph node via the efferent lymphatic vessels, which carry the filtered lymph away from the node.
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