There are 8 Jungian Cognitive Functions that make up Myers Briggs personalities. We have broken each down in depth:
Introverted Functions
Introverted Feeling (Fi)
Introverted Thinking (Ti)
Introverted Intuition (Ni)
Introverted Sensing (Si)
Extraverted Functions
Extraverted Feeling (Fe)
Extraverted Thinking (Te)
Extraverted Intuition (Ne)
Extraverted Sensing (Se)