ATI RN
Chapter 20 The Lymphatic System and Immunity Sample Questions Questions
Question 1 of 5
Peripheral nervous system (PNS)
Correct Answer: D
Rationale: The PNS is outside the CNS (brain and spinal cord) and includes nerves and ganglia, making A and B correct.
Question 2 of 5
genes are responsible for coding for self-proteins.
Correct Answer: B
Rationale: MHC (Major Histocompatibility Complex) genes encode self-proteins for immune recognition, unlike STR, RFLP, or PCR (genetic tools).
Question 3 of 5
Which of the options below completes the following statement: Intracellular expression by innate immune cells is characteristic of.
Correct Answer: D
Rationale: TLR3, TLR7, and TLR9 are intracellular (endosomal), detecting nucleic acids, unlike TLR4, TLR5, etc., which are surface-bound.
Question 4 of 5
Complete the following sentence. During an immune response, the first antibody isotype expressed is.
Correct Answer: D
Rationale: IgM is the first isotype produced in a primary response, expressed on naïve B cells and secreted early.
Question 5 of 5
The yellow, red and blue components of the immunological synapse formed between a cytotoxic T cell and its target in the figure below correspond respectively to
Correct Answer: A
Rationale: The synapse typically has a secretory domain (yellow, granzyme release), adhesion zone (red, stability), and signaling domain (blue, TCR), per standard models.