The branches of meridian of Foot-TAI YANG spreading into paravertebral muscles have two. They are small collaterals which bladder meridian diverges from popliteal fossa and lateral aspect of popliteal fossa. If there is disease in lateral aspect of popliteal fossa, it will be lumbago, seeing object not clearly and enuresis. It will be blood when prick one branch of lateral aspect of popliteal fossa. If one branch of popliteal fossa contracts disease, it will be lumbus painful as fit to break as gubernaculums and timorousness. It will be blood when prick one branch of popliteal fossa.

The branches of meridian of Foot-TAI YANG spreading into paravertebral muscles pertains to bladder meridian and two collaterals which bladder meridian diverges from center popliteal fossa and lateral aspect of popliteal fossa. Bladder meridian is distributed over kidney and waist and causes lumbago; it is distributed over inner canthus and causes seeing object not clearly. Bladder meridian sinew is distributed over shoulder in twelve meridian sinews, so if there is disease in the branches of meridian of Foot-TAI YANG spreading into paravertebral muscles, it will draft shoulder pain.