Question 1

Which of the following best describes the primary function of lymphatic capillaries compared to blood capillaries?

Accepted Answer

They are closed at one end and have overlapping endothelial cells that act as one-way valves.

Question 2

A patient has a blockage in the thoracic duct. Which of the following regions would most likely experience impaired lymph drainage?

Accepted Answer

Left leg and left side of the abdomen

Question 3

Which of the following is a function of the spleen?

Accepted Answer

Filtration of blood to remove abnormal blood cells

Question 4

Which immune cell is primarily responsible for immune surveillance and the destruction of virus-infected or cancerous cells?

Accepted Answer

Natural killer (NK) cells

Question 5

A child receives antibodies from her mother through breast milk. This is an example of which type of immunity?

Accepted Answer

Naturally acquired passive immunity

Question 6

Which of the following best explains the process of opsonization in the immune response?

Accepted Answer

Complement proteins coat pathogens, enhancing phagocytosis.

Question 7

Which class of MHC protein is found on all nucleated cells and presents endogenous antigens to cytotoxic T cells?

Accepted Answer

Class I MHC

Question 8

A person is exposed to a new strain of influenza virus. Which immune response will be activated first?

Accepted Answer

Innate immunity involving physical barriers and phagocytes

Question 9

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

Accepted Answer

Mast cell activation → increased capillary permeability → phagocyte attraction → tissue repair

Question 10

Which antibody class is produced first during the primary immune response?

Accepted Answer

IgM

Question 11

A patient with a penicillin allergy experiences an immune response when penicillin binds to a normal protein in the body. What is the best explanation for this reaction?

Accepted Answer

Penicillin acts as a hapten, and the immune system attacks both the hapten and the carrier protein.

Question 12

Which of the following best describes the role of interferons in the immune response?

Accepted Answer

They trigger the production of antiviral proteins in neighboring cells.

Question 13

Which of the following is a property of adaptive immunity that allows for a faster and stronger response upon second exposure to the same antigen?

Accepted Answer

Memory

Question 14

Which of the following is a function of helper T cells (CD4+)?

Accepted Answer

Stimulate B cell activation and antibody production

Question 15

Which of the following best describes the process of antigen presentation by antigen-presenting cells (APCs)?

Accepted Answer

APCs engulf pathogens, process them, and present antigen fragments bound to class II MHC proteins.

Question 16

Which of the following is a correct statement about the complement system?

Accepted Answer

It can be activated by three different pathways: classical, lectin, and alternative.

Question 17

A person receives a vaccine containing an inactivated virus. Which type of immunity is being induced?

Accepted Answer

Artificially acquired active immunity

Question 18

Which of the following is a cardinal sign of inflammation caused by increased capillary permeability?

Accepted Answer

Swelling

Question 19

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

Accepted Answer

They secrete suppression factors to inhibit the immune response.

Question 20

Which of the following is the correct order of events in the activation of cytotoxic T cells?

Accepted Answer

Antigen recognition → costimulation → cell division → destruction of target cell

The Lymphatic System and Immunity: ANP College Study Notes

Study Guide - Practice Questions

Study Guide - Flashcards