Toxngbut ee sinkefng hexthorng si eng laai hiabtiaw kinbaq (muscle) ee oaqtang, zektog khiekoafn (organ) ee uxnzog, safnsefng iah thengcie tikag (sense), hQxleng sinthea hengtong (action). Sinkefng hexthorng zwiaux u sinkenggoaan (neuron) kab sinkefng.