Appendicitis Symptoms and Progression Quiz

T cells play a central role in the adaptive immune system.

T cells mature, differentiate, and develop their specific functions in the thymus gland.

T cell activation involves antigen recognition by a TCR with CD4 or CD8 proteins, followed by co-stimulation.

<p>The first signal is antigen recognition by a TCR with CD4 or CD8 proteins, and the second signal is co-stimulation.</p> Signup and view all the answers

<p>B cells transform into antibody-secreting plasma cells by binding to activated helper T cells.</p> Signup and view all the answers

<p>Active immunity involves the production of antibodies, while passive immunity involves the transfer of pre-formed antibodies.</p> Signup and view all the answers

<p>Antibodies in passive immunity are acquired through transfer from another source, either naturally (such as from the mother) or artificially (such as through immune serum).</p> Signup and view all the answers

<p>Class II MHC proteins help B cells present antigen fragments to activated helper T cells.</p> Signup and view all the answers

<p>T cells are named after the thymus gland because it is where they mature, differentiate, and acquire their specific functions.</p> Signup and view all the answers

<p>The B cell receptor is used by B cells to bind to their matching antigens.</p> Signup and view all the answers