Which tendon attaches to the calcaneal tuberosity?

Which tendon attaches to the calcaneal tuberosity?

• A. Achilles tendon
• B. Peroneus longus tendon
• C. Plantar fascia
• D. Flexor digitorum longus tendon

Answer: (A)

The Achilles tendon is the attachment point on the calcaneal tuberosity, serving as the common tendon of gastrocnemius and soleus (plus plantaris) that enables strong plantarflexion of the foot. The other structures don’t attach there as tendons: the peroneus longus tendon runs around the lateral malleolus and inserts on the plantar surface of the foot (near the base of the first metatarsal and medial cuneiform), not the calcaneal tuberosity; the plantar fascia does originate from the calcaneal tuberosity but is a fascia, not a tendon; and the flexor digitorum longus tendon travels to the distal phalanges after passing behind the medial malleolus, not anchoring to the calcaneal tuberosity.

The Achilles tendon is the attachment point on the calcaneal tuberosity, serving as the common tendon of gastrocnemius and soleus (plus plantaris) that enables strong plantarflexion of the foot. The other structures don’t attach there as tendons: the peroneus longus tendon runs around the lateral malleolus and inserts on the plantar surface of the foot (near the base of the first metatarsal and medial cuneiform), not the calcaneal tuberosity; the plantar fascia does originate from the calcaneal tuberosity but is a fascia, not a tendon; and the flexor digitorum longus tendon travels to the distal phalanges after passing behind the medial malleolus, not anchoring to the calcaneal tuberosity.