Lateral Calcaneus Quiz and Flashcards: Surface Anatomy

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Questions and Answers

Which of the following structures attaches to the tarsal sinus?

Dorsal interossei

Flexor retinaculum

Inferior extensor retinaculum (correct)

Plantar aponeurosis

What is the shape of the posterior articular facet on the dorsal surface of the calcaneus?

Crescentic

Oval (correct)

Rectangular

Triangular

Which ligament lies within the tarsal canal?

Cervical ligament

Interosseous talocalcaneal ligament (correct)

Bifurcate ligament

Plantar calcaneonavicular ligament

What is the relationship between the calcaneal sulcus and the sulcus tali?

They combine to form the tarsal canal Signup and view all the answers

Which of the following is NOT a feature of the dorsal surface of the calcaneus?

It contains the calcaneal tuberosity Signup and view all the answers

What is the direction of the tarsal canal?

Anterolaterally Signup and view all the answers

Which of the following structures attaches to the lateral process (posterolateral tubercle) of the calcaneal tuberosity?

Abductor digiti minimi Signup and view all the answers

Which of the following statements regarding the plantar surface of the calcaneus is incorrect?

The medial process (posteromedial tubercle) is smaller than the lateral process (posterolateral tubercle). Signup and view all the answers

Which of the following structures attaches to the area between the lateral and medial processes of the calcaneal tuberosity?

Long plantar ligament and abductor digiti minimi Signup and view all the answers

Which of the following structures does not attach to the medial process (posteromedial tubercle) of the calcaneal tuberosity?

Lateral head of quadratus plantae Signup and view all the answers

The posterior talocalcaneal ligament and calcaneofibular ligament attach to which region of the calcaneus?

Posterior third of the dorsal surface Signup and view all the answers

Which of the following statements about the dorsal surface of the calcaneus is correct?

The posterior third is a nonarticular area with numerous vascular foramina. Signup and view all the answers

Which of the following statements about the lateral surface of the calcaneus is correct?

The retrotrochlear eminence is a bony prominence formed due to the internal architecture of calcaneal trabeculae. Signup and view all the answers

What is the primary function of the fibular trochlea on the lateral surface of the calcaneus?

To separate the grooves for the tendons of the fibularis longus and fibularis brevis muscles. Signup and view all the answers

Which of the following structures is least likely to be present on the lateral surface of the calcaneus?

A tubercle for the attachment of the abductor digiti minimi muscle. Signup and view all the answers

What is the primary function of the medial surface of the calcaneus?

To accommodate the plantar nerves and vessels. Signup and view all the answers

Which of the following structures is most likely to be present on the lateral surface of the calcaneus?

The retrotrochlear eminence. Signup and view all the answers

Which of the following ligaments attaches to the lateral surface of the calcaneus?

Both the calcaneofibular and lateral talocalcaneal ligaments. Signup and view all the answers

Study Notes

Tarsal Structures and Facets

The tarsal sinus is associated with the interosseous talocalcaneal ligament.
The posterior articular facet on the dorsal surface of the calcaneus is oval-shaped.
The tarsal canal contains the fibrous sheath of the tendon of the flexor hallucis longus.

Relationship of Sulci

The calcaneal sulcus runs parallel to the sulcus tali, forming a groove for the interosseous talocalcaneal ligament.

Features of Calcaneus

Features NOT present on the dorsal surface of the calcaneus include the fibular trochlea.
The tarsal canal runs obliquely from posterior to anterior and medial to lateral.

Attachments on Calcaneal Tuberosity

The lateral process (posterolateral tubercle) of the calcaneal tuberosity serves as an attachment for the lateral collateral ligaments.
Structures attaching between the lateral and medial processes of the calcaneal tuberosity include the plantar aponeurosis.
Structures that do not attach to the medial process (posteromedial tubercle) include the long plantar ligament.

Ligaments and Surfaces

The posterior talocalcaneal ligament and calcaneofibular ligament attach to the lateral surface of the calcaneus.
The dorsal surface of the calcaneus is characterized by a prominent calcaneal tuberosity and a smooth area for joint articulation.
The lateral surface of the calcaneus is notable for the presence of the fibular trochlea.

Functional Aspects

The primary function of the fibular trochlea on the lateral surface is to guide the fibularis longus and brevis tendons.
Structures least likely to be present on the lateral surface include the flexor hallucis longus tendon.
The primary function of the medial surface of the calcaneus is to provide support and stability to the foot's arch.
The most commonly present structure on the lateral surface is the peroneal tubercle.
Ligaments that attach to the lateral surface of the calcaneus include the anterior talofibular ligament and calcaneofibular ligament.

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Description

Test your knowledge on the anatomy of the lateral surface of the calcaneus bone. Learn about the retrotrochlear eminence and other landmarks on this bony structure.

Calcaneus Lateral Surface Anatomy

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