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

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Showing all 5 practice questions with expert explanatory rationales.

Question 1 of 5

blood sinusoid of red pulp collect blood in

A. penicillar arteriole

B. red pulp vein

C. venous sinus

D. follicular arteriole

Expert Explanatory Rationale

Correct Answer: venous sinus

Question 2 of 5

The ability of the body to react to antigens is

A. edema

B. inflammation

C. homeostasis

D. immunity

Expert Explanatory Rationale

Correct Answer: immunity

Question 3 of 5

Complete the following sentence. The antibody isotype which displays the highest avidity due to its pentameric form, and is capable of complement recruitment corresponds to.....

A. IgA

B. IgE

C. IgG

D. IgM

Expert Explanatory Rationale

Correct Answer: IgM

Question 4 of 5

Stimulation of the nucleic acid sensing TLRs that reside in endosomal membranes induces the production of a different cytokine response than is produced by stimulation of the plasma membrane TLRs. In part, this distinction is based on the different adapter proteins used by the nucleic acid sensing TLRs, leading to the activation of IRF factors. The cytokine response following stimulation of nucleic acid-sensing TLRs is characterized by production of:

A. The antiviral cytokine, type I interferon

B. TNF-ÃŽÂ±, which induces increased vascular permeability

C. Antimicrobial peptides by macrophages

D. Chemokines that recruit neutrophils

Expert Explanatory Rationale

Correct Answer: The antiviral cytokine, type I interferon

Question 5 of 5

Which structure connects lymph nodes in a chain?

A. Lymphatic vessels

B. Blood vessels

C. Nerves

D. Ducts

Expert Explanatory Rationale

Correct Answer: Lymphatic vessels