Q: Which equation best represents the relationship between fluid movement in lymphatic capillaries and pressure difference?

$$ Q = k \times (P_{interstitial} - P_{lymph}) $$

Question 1

Which of the following is NOT a primary function of the lymphatic system?

Accepted Answer

Regulates blood glucose levels

Question 2

A patient presents with severe localized edema in her arm after lymph node removal during cancer surgery. What is the most likely diagnosis?

Accepted Answer

Lymphedema

Question 3

Which structure is responsible for cleansing lymph before it is returned to the blood?

Accepted Answer

Lymph nodes

Question 4

Lymphatic capillaries differ from blood capillaries in that they:

Accepted Answer

Are blind-ended and more permeable

Question 5

Which of the following best describes the role of T cells in the lymphatic system?

Accepted Answer

Manage immune response and attack infected cells

Question 6

A cancer cell metastasizes and becomes trapped in a lymph node. What is a likely clinical sign?

Accepted Answer

Swollen but usually painless lymph node

Question 7

Which lymphoid organ is the site of T cell maturation and is largest during adolescence?

Accepted Answer

Thymus

Question 8

Which of the following lymphatic structures is most similar to veins in terms of wall structure and presence of valves?

Accepted Answer

Collecting lymphatic vessels

Question 9

Which equation best represents the relationship between fluid movement in lymphatic capillaries and pressure difference?

Accepted Answer

$$ Q = k 	imes (P_{interstitial} - P_{lymph}) $$

Question 10

Which of the following is a major function of the spleen?

Accepted Answer

Cleanses blood of aged cells and platelets

Question 11

Which lymphoid tissue is found in the mucosa of the respiratory, digestive, and genitourinary tracts and protects against pathogens entering the body?

Accepted Answer

MALT (mucosa-associated lymphoid tissue)

Question 12

A patient has a ruptured spleen after a car accident. What is the most immediate concern?

Accepted Answer

Hemorrhage and shock due to blood loss

Question 13

Which of the following lymphoid organs contains reticular connective tissue that provides sites for lymphocyte proliferation?

Accepted Answer

Lymph nodes

Question 14

Which of the following is TRUE regarding lymphatic capillaries?

Accepted Answer

They allow entry of large molecules, cell debris, and pathogens

Question 15

Which lymphoid structure is located in the wall of the distal small intestine and helps generate 'memory' lymphocytes?

Accepted Answer

Peyer's patches

Question 16

Which of the following best explains why lymphatic vessels have valves?

Accepted Answer

To prevent backflow and ensure unidirectional movement of lymph

Question 17

Which lymphoid organ is an offshoot of the first part of the large intestine and contains a large number of lymphoid follicles?

Accepted Answer

Appendix

Question 18

Which of the following is a correct sequence for lymph flow through a lymph node?

Accepted Answer

Afferent lymphatic vessel → cortex → medulla → efferent lymphatic vessel

Question 19

Which of the following is a consequence of blocked lymphatic drainage in a limb?

Accepted Answer

Localized edema due to accumulation of interstitial fluid

Question 20

Which of the following best describes the function of B cells in the lymphatic system?

Accepted Answer

Produce plasma cells that secrete antibodies

Lymphatic System: Structure, Function, and Clinical Relevance

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