Author Question: The nursing instructor explains that future exposure to an antigen previously encountered elicits a ... (Read 45 times)

lbcchick · **on:** Jul 23, 2018

The nursing instructor explains that future exposure to an antigen previously encountered elicits a much faster response as the result of what cells forming memory cells?

A) T cells
B) Lymphocytes
C) Monocytes
D) B cells

Question 2

The nursing instructor is talking with her clinical group about the hypothalamicpituita ry axis (HPA) and what happens when a need arises to interact with the total system. The instructor explains that this can create what?

A) A negative feedback system
B) Homeostasis
C) Complications
D) Maximum efficiency

bblaney · **Reply #1 on:** Jul 23, 2018

Answer to Question 1

D
Feedback:
After being activated, the B cells form memory cells that will produce antibodies for immediate release in the future if the antigen is encountered again. Although lymphocytes, monocytes, and T cells will then join in the battle to destroy the antigen, they do not produce memory cells as the B cells do.

Answer to Question 2

C
Feedback:
This system (i.e., the HPA) also can create complications, especially when a need exists to override or interact with the total system, as is the case with replacement therapy or treatment of endocrine disorders. Interactions with the total system cannot create a negative feedback system, homeostasis, or maximum efficiency. The other options are incorrect.