ANATOMY
LYMPHATIC SYSTEM
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
True
|
|
|
False
|
|
|
Either A or B
|
|
|
None of the above
|
Detailed explanation-1: -An antigen-presenting cell (APC) is an immune cell that detects, engulfs, and informs the adaptive immune response about an infection. When a pathogen is detected, these APCs will phagocytose the pathogen and digest it to form many different fragments of the antigen.
Detailed explanation-2: -A professional antigen presenting cell (APC) has the ability to capture and process foreign antigens, and to deliver the three signals for T cell activation (peptide MHC-TCR, costimulation and polarizing cytokines).
Detailed explanation-3: -Dendritic cells are the most important antigenpresenting cell of the three, with a central role in the initiation of adaptive immune responses (see Section 1-6). Macrophages can also mediate innate immune responses directly and make a crucial contribution to the effector phase of the adaptive immune response.
Detailed explanation-4: -Answer) Dendritic cell, macrophage Both are innate immune system antigen presenting cells Like macrophages, APCs absorb a…