Question 1

Which of the following best describes the pathway of lymph from the lymphatic capillaries back to the cardiovascular system?

Accepted Answer

Lymphatic capillaries → lymphatic vessels → lymph nodes → subclavian veins

Question 2

Which lymphatic tissue is classified as MALT and is primarily found in the mucosa of the gastrointestinal tract?

Accepted Answer

Peyer's patches

Question 3

A patient has an enlarged spleen after a severe bacterial infection. Which function of the spleen is most directly related to this response?

Accepted Answer

Filtering blood and removing pathogens

Question 4

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

Accepted Answer

Transporting oxygen to tissues

Question 5

Which structure is responsible for the maturation of T lymphocytes?

Accepted Answer

Thymus

Question 6

Which of the following is a correct description of opsonization?

Accepted Answer

The process by which antibodies coat pathogens to enhance phagocytosis

Question 7

A patient receives an injection of antibodies after exposure to rabies. This is an example of:

Accepted Answer

Passive immunity

Question 8

Which of the following equations correctly represents the classical pathway of complement activation?

Accepted Answer

$$C1 + antibody-antigen \rightarrow C4 + C2 \rightarrow C3 \rightarrow C5-9$$

Question 9

Which type of cell is responsible for presenting antigens with MHC class II molecules to helper T cells?

Accepted Answer

Dendritic cells

Question 10

Which of the following is a function of regulatory T cells?

Accepted Answer

Suppressing immune responses to prevent autoimmunity

Question 11

During the inflammatory response, which event occurs first?

Accepted Answer

Vasodilation and increased vascular permeability

Question 12

Which of the following best describes the difference between the primary and secondary immune responses?

Accepted Answer

The secondary response is faster and produces more antibodies due to memory cells

Question 13

Which antibody is most abundant in plasma and is responsible for long-term immunity?

Accepted Answer

IgG

Question 14

A patient with a deficiency in membrane attack complex (MAC) formation would have trouble with which immune process?

Accepted Answer

Lysis of pathogenic cells

Question 15

Which equation best represents the relationship between lymph flow ($$Q$$), pressure difference ($$\Delta P$$), and resistance ($$R) in $$the lymphatic system?

Accepted Answer

$$Q = \frac{\Delta P}{R}$$

Question 16

Which of the following is a key advantage of adaptive immunity over innate immunity?

Accepted Answer

Ability to generate immunological memory for faster future responses

Question 17

Which cells are primarily responsible for antibody production?

Accepted Answer

Plasma cells

Question 18

Which of the following is true regarding the function of cytotoxic T cells?

Accepted Answer

They destroy infected or cancerous cells by inducing apoptosis

Question 19

Which tonsils are located at the posterior aspect of the oral cavity and are commonly removed during tonsillectomy?

Accepted Answer

Palatine tonsils

Question 20

Which of the following best describes the process of phagocyte mobilization during inflammation?

Accepted Answer

Neutrophils migrate to the site of infection in response to chemotactic signals

Lymphatic and Immune Systems: Key Concepts and Functions

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