Question 1

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

Accepted Answer

Production of red blood cells

Question 2

Lymphatic capillaries are uniquely structured to allow fluid entry. Which feature enables this function?

Accepted Answer

Overlapping endothelial cells that act as one-way flaps

Question 3

Which lymphatic tissue is most closely associated with mucosal surfaces and provides localized immune protection?

Accepted Answer

Mucosa-Associated Lymphatic Tissue (MALT)

Question 4

A patient has swelling in the lower limb due to blockage of lymphatic vessels. What is the most likely consequence regarding interstitial fluid?

Accepted Answer

Accumulation of interstitial fluid leading to edema

Question 5

Which of the following statements about lymph nodes is TRUE?

Accepted Answer

They contain follicles that enlarge during infection

Question 6

Which cell type is primarily responsible for the humoral immune response?

Accepted Answer

B lymphocytes

Question 7

The complement system enhances immunity by all of the following EXCEPT:

Accepted Answer

Directly producing antibodies

Question 8

Which of the following best describes the role of MHC I molecules?

Accepted Answer

Present endogenous antigens to cytotoxic T cells

Question 9

A person receives a kidney transplant from a genetically non-identical individual. What type of graft is this?

Accepted Answer

Allograft

Question 10

Which antibody class is most abundant in serum and can cross the placenta?

Accepted Answer

IgG

Question 11

During a secondary immune response, which of the following occurs compared to the primary response?

Accepted Answer

Faster and stronger antibody production

Question 12

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

Accepted Answer

Destroy infected or cancerous cells using perforins

Question 13

Which type of hypersensitivity reaction is characterized by immediate onset, such as anaphylaxis?

Accepted Answer

Type I

Question 14

Which equation best represents the relationship between extracellular fluid compartments in the body?

Accepted Answer

$$Extracellular\ Fluid = Interstitial\ Fluid + Plasma$$

Question 15

Which of the following is TRUE regarding antigen presentation?

Accepted Answer

T cell receptors can only bind antigens displayed by MHC molecules

Question 16

A patient develops a fever in response to infection. Which of the following best explains the physiological mechanism?

Accepted Answer

Pyrogens reset the hypothalamic set point

Question 17

Which antibody class is primarily found in secretions of the skin and mucous membranes?

Accepted Answer

IgA

Question 18

Which of the following is a correct description of the role of lacteals?

Accepted Answer

Absorb dietary fats from the small intestine

Question 19

Which of the following best describes the process of immunological memory?

Accepted Answer

Memory cells allow for a rapid and robust response upon re-exposure to the same antigen

Question 20

Which of the following hypersensitivity types is mediated by immune complexes?

Accepted Answer

Type III

Chapter 20: The Lymphatic and Immune Systems – Structure and Function

Study Guide - Practice Questions