How do T cells tell the difference between self and non-self?

See full video here to learn about the difference between MHC I and MHC II and how they help T cells be able to tell the difference between self and non-self!
• Immune system: MHC I v...

[@DrVanessa]

Link to video to learn more!
ua-cam.com/video/j9B3Q-8AfaU/v-deo.html