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The body of the talus comprises most of the volume of the talus bone (ankle bone). It presents with five surfaces; a superior, inferior, medial, lateral and a posterior: [ 8 ] The superior surface of the body presents, behind, a smooth trochlear surface, the trochlea, for articulation with the tibia .
Trochlea of humerus (part of the elbow hinge joint with the ulna) Trochlea of femur (forming the knee hinge joint with the patella) The trochlea tali in the superior surface of the body of talus (part of the ankle hinge joint with the tibia) Trochlear process of the calcaneus; In quadrupeds, the trochlea of Radius (bone)
The trochlea articulated with the trochlear notch and coronoid. The elbow is a hinge joint with a rotatory component where the trochlea forms the convex, proximal surface which articulates with the concave, distal surface on the ulna, the trochlear notch. While the trochlea together with its associated fossae almost covers a 360° angle, the ...
The lower extremity consists of 2 epicondyles, 2 processes (trochlea and capitulum), and 3 fossae (radial fossa, coronoid fossa, and olecranon fossa). As well as its true anatomical neck, the constriction below the greater and lesser tubercles of the humerus is referred to as its surgical neck due to its tendency to fracture, thus often ...
The medial surface presents in front a smooth triangular surface, convex from above downward, which articulates with a corresponding surface on the lateral side of the talus. Behind and beneath the articular surface is a rough depression, which gives attachment to the posterior talofibular ligament .
The ankle bone (talus) is exceptionally long and high as well as the facet where it connects with the leg (the trochlea), which may be related to how H. antecessor walked. The long trochlea caused a short neck of the talus, which bridges the head of the talus connecting to the toes, and the body of the talus connecting to the leg.
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The talus bone, calcaneus, and navicular bone are considered the proximal row of tarsal bones. [3] In the calcaneus, several important structures can be distinguished: [3] There is a large calcaneal tuberosity located posteriorly on plantar surface with medial and lateral tubercles on its surface.