Does the calcaneus have a Trochlea?
The calcaneus is an irregular, roughly cuboidal bone sitting below the talus. On the otherwise fairly smooth lateral aspect of the calcaneus is the fibular trochlea (peroneal tubercle) anterior to the middle of the surface, where the tendons of the fibularis brevis and longus muscles pass above and below respectively.
Which anatomical structures are there on calcaneus?
The calcaneus articulates with two bones: the talus and the cuboid. There are three articular surfaces for the talus. The largest is the slightly convex oval surface for the body of the talus. Anteromedial to this is the medial articular surface for the talus on the dorsal aspect of the sustentaculum tali.
What articulates with the calcaneus?
Articulations. Superiorly, the calcaneus articulates with the talus at the talocalcaneal joint, (subtalar joint), making contact at anterior, middle and posterior facets.
Which muscles inserts into the calcaneus?
The Achilles tendon is also called the calcaneal tendon. The gastrocnemius and soleus muscles (calf muscles) unite into one band of tissue, which becomes the Achilles tendon at the low end of the calf. The Achilles tendon then inserts into the calcaneus.
What is the process of the calcaneus called?
On the lateral side is commonly a tubercle called the calcaneal tubercle (or trochlear process). This is a raised projection located between the tendons of the peroneus longus and brevis.
What is the os Calcis?
1. The largest of the tarsal bones; it forms the heel and articulates with the cuboid anteriorly and the talus superiorly. Synonym(s): calcaneal bone, calcaneum, heel bone, os calcis. 2.
Does calcaneus articulate with navicular?
The navicular bone is a keystone of the foot: it is part of the coxa pedis and articulates with the talus, first, second and third cuneiform, cuboid and calcaneus.
Which muscle inserts to the calcaneus via the Achilles calcaneal tendon?
The soleus muscle runs along the gastrocnemius muscle and together they insert onto the posterior surface of the calcaneus via the calcaneal tendon. The calcaneal tendon, commonly called the Achilles tendon, is the strongest tendon of the human body.
Which clinical manifestation would occur in a calcaneus deformity?
Deformities associated with nonoperative management of calcaneal fractures include heel widening, subtalar incongruity, loss of calcaneal height (decreased Böhler angle), and varus alignment. Heel widening can lead to subfibular impingement and dysfunction of the peroneal tendons.
Is calcaneus a tarsal?
Seven bones — called tarsals — compose the hindfoot and midfoot. Of these bones, the calcaneus, talus, and navicular are most commonly involved in tarsal coalition.
Where is Calcis located?
heel
The calcaneus forms the bony part of the heel. It forms a joint with the talus bone, the subtalar joint. In humans and many other primates, the calcaneus (/kælˈkeɪniəs/; from the Latin calcaneus or calcaneum, meaning heel) or heel bone is a bone of the tarsus of the foot which constitutes the heel.
What is the calcaneus?
The calcaneus is the bone that forms the heel of the foot. It is one of the tarsals, the bones that make up part of the foot and ankle. The calcaneus is the largest bone of the foot and provides the foundation for all of the other tarsals and metatarsals.
How does the calcaneus articulate with the talus?
The calcaneus articulates with talus through the talocalcaneal joint in which the contact between the two bones derives from the anterior, middle, and posterior facets. The talocalcaneal joint, also known as the subtalar joint, allows for essential foot motions such as inversion, eversion, dorsiflexion, and plantarflexion of the foot.
What is the calcaneal tubercle?
On the lateral side is commonly a tubercle called the calcaneal tubercle (or trochlear process). This is a raised projection located between the tendons of the peroneus longus and brevis. It separates the two oblique grooves of the lateral surface of the calcaneus (for the tendons of the peroneal muscles).
What connects the calcaneus to the tarsal bone?
The most superior portion of the calcaneus connects to a tarsal bone, called the talus, above it. The talus articulates with the calcaneus on three surfaces: the anterior talar articular surface, the middle talar articular surface and, the largest, the posterior talar articular surface.