Question 1

Which of the following best describes the function of lymphatic capillaries in tissue fluid homeostasis?

Accepted Answer

They absorb excess interstitial fluid and return it to the bloodstream as lymph.

Question 2

A patient has swelling in the right arm and right side of the head. Which lymphatic structure is most likely obstructed?

Accepted Answer

Right lymphatic duct

Question 3

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

Accepted Answer

Pumping action of the heart

Question 4

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

Accepted Answer

Removal of aged and defective erythrocytes

Question 5

A child with a congenital absence of the thymus would most likely have a deficiency in which type of cell?

Accepted Answer

T lymphocytes

Question 6

Which of the following best explains why tonsillar crypts increase the risk of infection but also enhance immunity?

Accepted Answer

They trap pathogens, increasing exposure to immune cells.

Question 7

Which of the following is NOT a cardinal sign of acute inflammation?

Accepted Answer

Fever

Question 8

During the process of phagocytosis, which step involves the fusion of a lysosome with the phagocytic vesicle?

Accepted Answer

Formation of the phagolysosome

Question 9

Which immunoglobulin is most abundant in plasma and is capable of crossing the placenta?

Accepted Answer

IgG

Question 10

A patient is exposed to a pathogen for the second time. Which of the following best describes the expected antibody response?

Accepted Answer

A rapid and large production of IgG antibodies

Question 11

Which of the following best describes the role of MHC I molecules in the immune response?

Accepted Answer

They present endogenous antigens to cytotoxic T cells.

Question 12

Which of the following is a correct sequence of events in the mobilization of phagocytes during inflammation?

Accepted Answer

Leukocytosis → Margination → Diapedesis → Chemotaxis

Question 13

Which of the following statements about adaptive immunity is TRUE?

Accepted Answer

It is specific and has memory, producing a stronger response upon re-exposure to the same antigen.

Question 14

Which cell type is the most effective antigen-presenting cell (APC) and links innate and adaptive immunity?

Accepted Answer

Dendritic cell

Question 15

Which of the following best describes the process of opsonization?

Accepted Answer

Antibodies or complement proteins coat pathogens to enhance phagocytosis.

Question 16

A patient with a deficiency in CD4+ T cells would have impaired function in which of the following?

Accepted Answer

Activation of B cells and cytotoxic T cells

Question 17

Which of the following is a function of the lacteals in the small intestine?

Accepted Answer

Absorption of dietary fats and transport to the thoracic duct

Question 18

Which of the following best explains why the lymphatic system is considered a 'one-way' system?

Accepted Answer

Lymph flows toward the heart and is not returned to the tissues.

Question 19

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

Accepted Answer

Lymphatic capillaries → Collecting vessels → Trunks → Ducts

Question 20

A patient is experiencing an allergic reaction. Which immunoglobulin is most likely responsible for triggering mast cell degranulation?

Accepted Answer

IgE

The Lymphatic System and Immune Systems: Structure, Function, and Defense

스터디 가이드 - 연습 문제