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ATI LPN · Anatomy and Physiology · Chapter 20 The Lymphatic System and Immunity Sample Questions

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Showing all 5 practice questions with expert explanatory rationales.

Question 1 of 5

Complete the following sentence. During an immune response, the first antibody isotype expressed is.

A. IgA

B. IgE

C. IgG

D. IgM

Correct Answer: IgM

Question 2 of 5

What is the role of NK cells in the innate immune system?

A. To produce cytokines that facilitate communication between immune cells

B. To destroy bacteria, parasites, virus-infected cells, and some cancer cells

C. To create phagosomes and fuse them with lysosomes to destroy dangerous compounds

D. To alert the brain of pain signals when there is a wound

Correct Answer: To destroy bacteria, parasites, virus-infected cells, and some cancer cells

Question 3 of 5

Peripheral nervous system (PNS)

A. Located outside the CNS

B. Consists of Nerves and Ganglia

C. Brain & Spinal cord

D. A& b

Correct Answer: A& b

Question 4 of 5

trabecular artery in spleen circulation divide into

A. penicillar arteriole

B. red pulp vein

C. venous sinus

D. follicular arteriole

Correct Answer: follicular arteriole

Question 5 of 5

In the above question, resolution of parasitic infections of the gastrointestinal tract is dependent upon the activation of:

A. B cells to produce IgG antibodies

B. T cytotoxic cells

C. T helper type 1 (Th1) cells to secrete IL-4 and IL-13 to produce IgE antibodies

D. T helper type 2 (Th2) cells to secrete IL-4 and IL-13 to produce IgE antibodies

Correct Answer: T helper type 2 (Th2) cells to secrete IL-4 and IL-13 to produce IgE antibodies

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