What are two unpaired meridians for acupuncture?

The two unpaired meridians in acupuncture are the Governing Vessel (Du) and the Conception Vessel (Ren). The Governing Vessel runs along the midline of the back and is associated with the Yang energy, while the Conception Vessel runs along the midline of the front of the body, associated with Yin energy. These meridians play crucial roles in balancing the body's energy and are central to various acupuncture treatments.