Question 1

Which of the following best describes the primary function of the lymphatic system?

Accepted Answer

Return interstitial fluid to the bloodstream and provide immune defense

Question 2

Which organ is responsible for filtering blood and removing old or damaged red blood cells in the lymphatic system?

Accepted Answer

Spleen

Question 3

Compare and contrast lymphatic vessels and blood vessels. Which statement is correct?

Accepted Answer

Lymphatic vessels have valves to prevent backflow, while most blood vessels do not

Question 4

Which of the following is a major difference between innate (nonspecific) and adaptive (specific) immunity?

Accepted Answer

Innate immunity provides a general defense, while adaptive immunity targets specific antigens

Question 5

A patient receives a vaccine for influenza. Which part of the immune system is primarily responsible for developing long-term immunity?

Accepted Answer

B lymphocytes producing memory cells

Question 6

Which of the following is NOT a function of lymph nodes?

Accepted Answer

Producing insulin

Question 7

During inflammation, which chemical mediator is primarily responsible for vasodilation and increased vascular permeability?

Accepted Answer

Histamine

Question 8

Which equation best represents the relationship between antigen presentation and T cell activation?

Accepted Answer

$$T_{activation} = APC_{MHC} + Antigen$$

Question 9

A patient with a fever has a body temperature of $$39^\circ C. $$Which equation best describes the effect of fever on the rate of enzymatic reactions?

Accepted Answer

$$Rate \propto e$$^{kT}$$

Question 10

Which of the following best explains the process of phagocytosis?

Accepted Answer

Engulfment and digestion of foreign particles by specialized cells

Question 11

Which cell type is primarily responsible for cell-mediated immunity?

Accepted Answer

T cells

Question 12

Which of the following is a correct sequence for the four cardinal signs of inflammation?

Accepted Answer

Redness, heat, swelling, pain

Question 13

Which process is described by the equation $$Antibody_{memory} = B_{cell}^{activation} + Antigen$$?

Accepted Answer

Formation of memory B cells after antigen exposure

Question 14

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

Accepted Answer

They present antigens to T cells for recognition

Question 15

A patient is exposed to a new pathogen. Which immune response will act first?

Accepted Answer

Innate immunity

Question 16

Which of the following is a function of natural killer (NK) cells?

Accepted Answer

Directly lyse virus-infected and tumor cells

Question 17

Which equation best represents the process of B cell activation?

Accepted Answer

$$B_{activation} = Antigen + Helper\ T_{cell}$$

Question 18

Which antibody class is most effective at activating complement and is the first produced during a primary immune response?

Accepted Answer

IgM

Question 19

Which of the following best explains how vaccination works?

Accepted Answer

It stimulates the adaptive immune system to produce memory cells without causing illness

Question 20

Which process is described by the equation $$Immunity_{memory} = Antigen + B_{cell}^{activation} + T_{cell}^{help}$$?

Accepted Answer

Development of long-term immunity after vaccination

Lymphatic System and Immunity: Study Guide

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