o Meridians and colleteral o Transmit Qi and blood o Obstruction of Qi and blood n Overflow of Qi and blood o Principles of acupuncture for neural diseases o Activate Qi and blood circulation o Regulate yin and YangMeridians and colleterals Transmit Qi and blood Obstruction of Qi and blood Overflow of Qi and blood Principles of acupuncture for neural diseases Activate Qi and blood circulation Regulate Yin and Yang