A long answer you say? >_<'
Okey, well Taijutsu is Body Techniques. Taijutsu typically theres no need for adding chakra into it since it's basically hand-to-hand combat, though adding Chakra will of course do the strikes more powerfull and it doesn't require handseals. Taijutsu is used by Shinobis that prefers physically fights, for example, Rock Lee and Might Guy. <_<'
That's my answer D:', Hope it's good enuff'. >_>'