Calcaneus

This tutorial provides an in-depth look at the calcaneus, also known as the heel bone. It covers the bone's anatomy, including its articular surfaces and bony landmarks, and details the muscles, tendons, and ligaments that attach to it. The video also discusses clinical conditions related to the calcaneus, such as fractures and plantar fasciitis, offering insights into their implications and treatment.

What is the primary function of the calcaneus in the foot?

• To act as a lever for the calf muscles

• To connect the tibia and fibula

• To protect the ankle joint

• To support the arch of the foot

Which bones does the calcaneus articulate with?

• Metatarsals

• Talus and cuboid

• Tibia and fibula

• Navicular and cuneiform

What is the function of the calcaneal sulcus?

• To protect the Achilles tendon

• To connect the talus and cuboid

• To support the arch of the foot

• To provide attachment for ligaments

Which muscle attaches to the medial process of the calcaneal tuberosity?

• Abductor hallucis

• Extensor digitorum brevis

• Tibialis anterior

• Peroneus longus

What is the role of the Achilles tendon in relation to the calcaneus?

• It supports the arch of the foot

• It inserts onto the posterior surface of the calcaneus

• It connects the calcaneus to the cuboid

• It stabilizes the ankle joint

Which ligament attaches near the fibular trochlea of the calcaneus?

• Spring ligament

• Deltoid ligament

• Plantar calcaneonavicular ligament

• Calcaneofibular ligament

Which muscle is also known as the quadratus plantae?

• Flexor accessorius

• Abductor hallucis

• Flexor digitorum brevis

• Extensor digitorum brevis

What is the most common type of fracture in the calcaneus?

• Extraarticular fractures

• Avulsion fractures

• Stress fractures

• Intraarticular fractures

Plantar fasciitis affects which part of the calcaneus?

• Medial process of the calcaneal tuberosity

• Lateral process of the calcaneal tuberosity

• Sustentaculum tali

• Fibular trochlea

What is the typical symptom of plantar fasciitis?

• Swelling of the ankle

• Sharp pain at the anterior aspect of the calcaneus

• Numbness in the toes

• Bruising on the heel