Term Name:	T-helper 1 cell activation
Synonyms:	Th1 cell activation
Definition:	The change in morphology and behavior of a T-helper 1 cell resulting from exposure to a mitogen, cytokine, chemokine, cellular ligand, or an antigen for which it is specific.
Ontology:	GO: Biological Process [GO:0035711]    QuickGO    AmiGO