cognate T cell

https://doi.org/10.1351/goldbook.13020
Helper T lymphocyte (Th) primed by the same antigen as the B cell to which it gives help.
Source:
PAC, 2012, 84, 1113. (IUPAC glossary of terms used in immunotoxicology (IUPAC Recommendations 2012)) on page 1146 [Terms] [Paper]