Question 1

Which of the following best describes the function of the lymphatic capillaries' minivalves, as shown in the provided images?

Accepted Answer

They permit one-way entry of interstitial fluid into the lymphatic capillary, preventing backflow.

Question 2

Which equation best represents the net filtration pressure ($$NFP) $$that drives fluid out of blood capillaries into the interstitial space?

Accepted Answer

$$NFP = (HP_c - HP_i) - (OP_c - OP_i)$$

Question 3

A patient presents with swollen, painful lymph nodes after a bacterial infection. What is the most likely cause of this condition?

Accepted Answer

Buboes due to inflammation and infection

Question 4

Which lymphatic structure is responsible for the absorption and transport of dietary fats from the intestine?

Accepted Answer

Lacteal

Question 5

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

Accepted Answer

Filter blood to remove metabolic waste

Question 6

Which cell type in lymphoid tissue is primarily responsible for producing antibodies?

Accepted Answer

Plasma cells (derived from B lymphocytes)

Question 7

Which lymphatic duct drains lymph from the majority of the body, including the lower limbs and left side of the head and thorax?

Accepted Answer

Thoracic duct

Question 8

Which of the following best explains why lymph stagnates in lymph nodes?

Accepted Answer

There are fewer efferent vessels than afferent vessels.

Question 9

Which of the following is a primary lymphoid organ where T cells mature?

Accepted Answer

Thymus

Question 10

A patient with Burkitt lymphoma is found to have cancerous cells of which origin?

Accepted Answer

B cell

Question 11

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

Accepted Answer

Made up of epithelial cells

Question 12

Which of the following is true regarding the lymphatic capillaries in inflamed tissues?

Accepted Answer

They become more permeable, allowing uptake of cell debris, pathogens, and even cancer cells.

Question 13

Which of the following is a secondary lymphoid organ where mature lymphocytes encounter antigens?

Accepted Answer

Lymph node

Question 14

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

Accepted Answer

Site of immune function and B cell maturation

Question 15

Which of the following structures is NOT fully encapsulated and forms a ring of lymphoid tissue around the entrance of the throat?

Accepted Answer

Tonsil

Question 16

Which of the following is a specialized lymphoid structure found in the wall of the distal small intestine?

Accepted Answer

Peyer's patch

Question 17

Which cell type is responsible for capturing antigens and transporting them to lymph nodes to activate T lymphocytes?

Accepted Answer

Dendritic cell

Question 18

Which of the following best describes the pathway of lymph flow from capillaries to the bloodstream?

Accepted Answer

Capillaries → vessels → trunks → ducts → veins

Question 19

Which of the following is a common misconception about the lymphatic system?

Accepted Answer

The thymus directly fights antigens.

Question 20

Which of the following is a plausible explanation for why cancer cells can spread throughout the body via the lymphatic system?

Accepted Answer

Lymphatic capillaries are highly permeable and can take up cancer cells, which may travel if not trapped in lymph nodes.

Chapter 20: The Lymphatic System and Lymphoid Organs and Tissues - Study Guide

Study Guide - Practice Questions