ATI RN
Lymphatic System Questions and Answers PDF Questions
Question 1 of 5
Antigen binding site on Immunoglobulin is located in:
Correct Answer: D
Rationale: Fab region binds antigens; Fc is effector, chains (A, C) contribute.
Question 2 of 5
A polymorphonuclear neutrophil (PMN):
Correct Answer: C
Rationale: PMNs (neutrophils) contain granules with microbicidal agents for phagocytosis, unlike stem cells or mast cells.
Question 3 of 5
Which of the following is the predominant route by which pathogens are brought from a site of infection into a lymph node?
Correct Answer: D
Rationale: Afferent lymphatics carry pathogens from infection sites to lymph nodes for immune recognition.
Question 4 of 5
Of the five classes of antibody heavy chains, which one's function is still partially unclear?
Correct Answer: D
Rationale: IgD function is less clear; IgE , IgM , IgG , and IgA are well-defined.
Question 5 of 5
A ____________ molecule is a glycoprotein used to identify and distinguish white blood cells.
Correct Answer: D
Rationale: Clusters of differentiation mark WBCs; MHC presents antigens.