Learn more: http://www.khanacademy.org/video?v=oqI4skjr6lQ
How cytotoxic T cells get activated by MHC-I/antigen complexes and then proceed to kill infected cells

Length: 11 minutes

Review of B cells, CD4+ T cells and CD8+ T cells

Length: 14 minutes

Inflammatory Response

Length: 18 minutes

The Kidney and Nephron