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ATI LPN · Anatomy and Physiology · Lymphatic and Immune System Test Questions

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Showing all 5 practice questions with expert explanatory rationales.

Question 1 of 5

Spaces between trabeculae, medullary Cord.

A. trabecula sinus

B. subcapsular sinus

C. medullary sinus

D. medullary Cord

Expert Explanatory Rationale

Correct Answer: medullary sinus

Question 2 of 5

The process of coating a microbe with antibodies to make it more susceptible to phagocytosis is

A. chemotaxis

B. opsonization

C. cloning

D. anergy

Expert Explanatory Rationale

Correct Answer: opsonization

Question 3 of 5

Maternal antibodies crossing the placenta to the fetus is an example of:

A. artificial active immunity

B. artificial passive immunity

C. natural active immunity

D. natural passive immunity

Expert Explanatory Rationale

Correct Answer: natural passive immunity

Question 4 of 5

Secondary (or peripheral) lymphoid organs are sites for initiation of adaptive immune responses. Given the rarity of lymphocytes specific for any given antigen and the vast amount of body tissue that must be protected, the system of secondary lymphoid tissues is efficient because:

A. It concentrates antigens in centralized locations for rare lymphocytes to encounter

B. It provides the optimal environment for the rapid proliferation of lymphocytes

C. It traps the pathogens and antigens in a contained environment so they cannot spread to other tissues in the body

D. It helps the innate immune cells eliminate the infection by using lymphatic fluid to drain pathogens from the infected tissue

Expert Explanatory Rationale

Correct Answer: It concentrates antigens in centralized locations for rare lymphocytes to encounter

Question 5 of 5

The definition, 'Innate and adaptive immune cell secreted protein that act as signalling molecules in an immune response' corresponds to?

A. Surfactants

B. Cytokines

C. Antimicrobial Peptides

D. Lysozymes

Expert Explanatory Rationale

Correct Answer: Cytokines

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