Question 1

Which of the following best describes the function of Peyer's patches and their location?

Accepted Answer

They are clusters of lymphatic tissue found in the ileum of the small intestine that monitor intestinal bacteria populations and prevent the growth of pathogenic bacteria.

Question 2

Which of the following is NOT a function of the spleen?

Accepted Answer

Production of new red blood cells in adults

Question 3

A patient has a thymus that is not functioning properly. Which of the following immune processes would be most directly affected?

Accepted Answer

Maturation of T lymphocytes

Question 4

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 → lymphatic trunks → lymphatic ducts → subclavian veins

Question 5

Which of the following is a primary function of the lymphatic system?

Accepted Answer

Returning excess interstitial fluid to the bloodstream

Question 6

Which lymphatic tissues are classified as MALT (Mucosa-Associated Lymphoid Tissue)?

Accepted Answer

Tonsils, Peyer's patches, and appendix

Question 7

Which of the following is a correct statement about the difference between the primary and secondary immune responses?

Accepted Answer

The secondary immune response is faster and produces a greater amount of antibodies due to memory cells.

Question 8

Which of the following best describes the process of opsonization?

Accepted Answer

The coating of pathogens with antibodies or complement proteins to enhance phagocytosis

Question 9

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

Accepted Answer

Artificial passive immunity

Question 10

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

Accepted Answer

Suppressing the immune response to prevent autoimmunity

Question 11

Which of the following best describes the function of the membrane attack complex (MAC) in the complement system?

Accepted Answer

It forms pores in the membrane of pathogens, leading to cell lysis.

Question 12

Which class of MHC molecules is present on all nucleated cells and presents endogenous antigens?

Accepted Answer

MHC Class I

Question 13

Which of the following is a correct sequence of events during the inflammatory response?

Accepted Answer

Vasodilation → increased vascular permeability → phagocyte mobilization

Question 14

Which of the following best describes the role of cytotoxic T cells?

Accepted Answer

They directly kill virus-infected and cancerous cells.

Question 15

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

Accepted Answer

It provides a specific response and immunological memory.

Question 16

Which of the following best describes the classical pathway of complement activation?

Accepted Answer

It is initiated when antibodies bind to antigens, activating C1 protein.

Question 17

A child is exposed to chickenpox and develops the disease, later becoming immune. This is an example of:

Accepted Answer

Natural active immunity

Question 18

Which of the following best describes the function of plasma cells?

Accepted Answer

They secrete large quantities of antibodies during an immune response.

Question 19

Which of the following is a correct statement about the difference between CD4 and CD8 T cells?

Accepted Answer

CD4 T cells are helper T cells, while CD8 T cells are cytotoxic T cells.

Question 20

A patient is unable to produce memory B cells. Which of the following would most likely be impaired?

Accepted Answer

The ability to mount a rapid and strong secondary immune response upon re-exposure to the same antigen.

Lymphatic and Immune Systems: Study Guide

Guida di studio - Domande di pratica

Study guide - Flashcard