Question 1

Which of the following best describes the primary function of lymphatic capillaries in the human body?

Accepted Answer

They absorb and transport digested fats from the intestine to the blood.

Question 2

A patient presents with severe localized edema after cancer surgery. Which physiological process is most likely impaired?

Accepted Answer

Lymphatic drainage of interstitial fluid

Question 3

Which of the following statements about lymph node structure is correct?

Accepted Answer

There are more afferent vessels feeding the node than efferent vessels draining it.

Question 4

Which lymphoid organ is responsible for the removal of aged red blood cells and bloodborne pathogens?

Accepted Answer

Spleen

Question 5

A 10-year-old child undergoes a splenectomy after trauma. Which organs will most likely compensate for the loss of splenic function?

Accepted Answer

Liver and bone marrow

Question 6

Which of the following is a primary lymphoid organ?

Accepted Answer

Thymus

Question 7

Which cell type is responsible for producing antibodies in response to antigen exposure?

Accepted Answer

Plasma cells derived from B lymphocytes

Question 8

Which mechanism does NOT contribute to the movement of lymph through lymphatic vessels?

Accepted Answer

Contraction of cardiac muscle

Question 9

A patient with swollen, tender lymph nodes is most likely experiencing which condition?

Accepted Answer

Lymphadenopathy due to infection

Question 10

Which of the following best describes the function of the thymus?

Accepted Answer

It is the site of T lymphocyte maturation.

Question 11

Which of the following structures is NOT considered part of MALT (mucosa-associated lymphoid tissue)?

Accepted Answer

Thymus

Question 12

Which of the following best explains why lymph flow through a lymph node is slow?

Accepted Answer

There are fewer efferent vessels than afferent vessels.

Question 13

Which of the following is a unique feature of lymphatic capillaries compared to blood capillaries?

Accepted Answer

They have one-way minivalves formed by overlapping endothelial cells.

Question 14

Which of the following is a function of reticular cells in lymphoid organs?

Accepted Answer

They form the stroma that supports other cell types.

Question 15

Which of the following best describes the role of dendritic cells in lymphoid tissues?

Accepted Answer

They capture antigens and present them to T cells.

Question 16

Which of the following is TRUE regarding the development of the lymphatic system?

Accepted Answer

Lymphatic vessels arise as lymph sacs from developing veins.

Question 17

Which of the following best describes the function of Peyer’s patches?

Accepted Answer

They prevent bacteria from breaching the intestinal wall and generate memory lymphocytes.

Question 18

Which of the following is a distinguishing feature of the thymus compared to other lymphoid organs?

Accepted Answer

Its stroma consists of epithelial cells rather than reticular fibers.

Question 19

Which of the following best describes the composition of white pulp in the spleen?

Accepted Answer

It consists mostly of lymphocytes on reticular fibers surrounding central arteries.

Question 20

A patient with a ruptured spleen is at increased risk for which of the following complications?

Accepted Answer

Life-threatening hemorrhage and shock

Study Guide: The Lymphatic System and Lymphoid Organs & Tissues

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