Final answer:
The plantar fascia inserts on the calcaneus bone in the foot.
Step-by-step explanation:
The insertion of the plantar fascia on the calcaneus is the attachment point where the plantar fascia, a thick band of connective tissue, connects to the heel bone (calcaneus) in the foot. The plantar fascia runs from the calcaneus bone to the toes and helps support the longitudinal arch of the foot.