Q: Which of the following equations best represents the volume of lymph returned to the blood per day?

$$V_{lymph} = 3\ \text{L/day}$$

Question 1

Which of the following best describes the primary function of lymphatic capillaries during inflammation?

Accepted Answer

They absorb cell debris, pathogens, and cancer cells from inflamed tissues.

Question 2

A patient presents with severe swelling in the lower limbs after a parasitic infection. Which lymphatic disorder is most likely responsible, and what is the underlying mechanism?

Accepted Answer

Elephantiasis; caused by parasitic worms blocking lymphatic vessels.

Question 3

Which of the following lymphatic structures is responsible for draining lymph from the right upper arm and right side of the head and thorax?

Accepted Answer

Right lymphatic duct

Question 4

What is the main difference between primary and secondary lymphoid organs?

Accepted Answer

Primary organs are where lymphocytes mature, while secondary organs are where lymphocytes encounter antigens.

Question 5

Which of the following best explains why lymph flows in only one direction through lymphatic vessels?

Accepted Answer

Lymphatic vessels have one-way valves that prevent backflow.

Question 6

A patient has a splenectomy (removal of the spleen). Which of the following consequences is most likely?

Accepted Answer

Reduced ability to filter bloodborne pathogens and recycle iron.

Question 7

Which lymphatic structure is most directly involved in the absorption of dietary fats from the small intestine?

Accepted Answer

Lacteals

Question 8

Which of the following is a function of the red pulp of the spleen?

Accepted Answer

Disposal of worn-out red blood cells and bloodborne pathogens

Question 9

Which of the following best describes the role of Peyer’s patches in the immune system?

Accepted Answer

They destroy bacteria and prevent them from breaching the intestinal wall.

Question 10

A 10-year-old child has an underdeveloped thymus. Which immune function is most likely to be impaired?

Accepted Answer

Maturation of T lymphocytes

Question 11

Which of the following equations best represents the volume of lymph returned to the blood per day?

Accepted Answer

$$V_{lymph} = 3\ 	ext{L/day}$$

Question 12

Which of the following is NOT a function of lymph nodes?

Accepted Answer

Absorption of dietary fats

Question 13

Which of the following best describes the structure and function of lymphatic nodules?

Accepted Answer

They are solid, spherical bodies with germinal centers for B cell maturation.

Question 14

Which of the following best explains why lymphatic collecting vessels have more internal valves than veins?

Accepted Answer

To prevent backflow and ensure one-way movement of lymph.

Question 15

Which of the following is a correct sequence of lymph flow from the tissues back to the bloodstream?

Accepted Answer

Lymphatic capillaries → lymphatic vessels → lymphatic trunks → lymphatic ducts

Question 16

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

Accepted Answer

It is involved in immune functions and lymphocyte maturation.

Question 17

Which of the following lymphoid organs is the site of B lymphocyte maturation?

Accepted Answer

Red bone marrow

Question 18

Which of the following best explains why lymph nodes swell during infection?

Accepted Answer

They accumulate large numbers of lymphocytes and macrophages responding to pathogens.

Question 19

Which of the following is a function of the thymus?

Accepted Answer

Secretion of thymosin to mature T lymphocytes

Question 20

Which of the following best describes the role of the skeletal and respiratory pumps in lymph transport?

Accepted Answer

They help move lymph through vessels by creating pressure changes during movement and breathing.

Chapter 20: The Lymphatic System – Structure, Function, and Clinical Significance

Study Guide - Practice Questions

Study Guide - Flashcards