Anterior talar articular surface in Latin. Structure and functions of the talus of the foot. Functionality and anatomy

  1. Anterior talar articular surface, fades articularis talaris anterior. Designed for articulation with the head of the talus. Rice. A, B.
  2. Middle articular surface, fades articularis talaris media. Separated from the posterior articular surface by a groove of the calcaneus. Rice. A, B.
  3. Posterior talar articular surface, fades articularis talaris posterior. The largest articular surface for articulation with the talus. Located at the posterior edge of the heel bone. Rice. A, B.
  4. Groove of the tendon of the peroneus longus muscle, sulcustendinis t. peronei (fibularis) longi. Located on the lateral surface of the bone under the fibular block. Rice. B.
  5. Peroneal block, trochlea regionalis (fibularis). Located above the groove of the peroneus longus tendon. Functions as a pulley for this muscle and also serves as the attachment site for the retinaculum peroneus tendon. The peroneus brevis muscle passes proximal to this block. Rice. B.
  6. Cuboid articular surface, fades articularis cuboidea. Located at the anterior end of the heel bone. Rice. A, B.
  7. Scaphoid bone, os naviculare. Located between the head of the talus and the three sphenoid bones. Rice. V, G.
  8. Tuberosity of the scaphoid, tuberositas ossis navicularis. A tuberous surface palpated through the skin, located on the underside of the bone, at its medial edge. Insertion site of the tibialis posterior muscle. Rice. G.
  9. Medial sphenoid bone, os cuneiforme mediale. Located between the scaphoid and 1st metatarsal bones. The wedge-shaped base is directed downwards. Rice. V, G.
  10. Intermediate sphenoid bone, os cuneiforme intermedium. Located between the scaphoid and 2nd metatarsal bones. The wedge-shaped base is directed upward. Rice. V, G.
  11. Lateral sphenoid bone, os cuneiforme laterale. Lies between the scaphoid and 3rd metatarsal bones. The wedge-shaped base faces upward. Rice. V, G.
  12. Cuboid bone, os cuboideum. Located between the calcaneus and 4th - 5th metatarsal bones. Rice. V, G.
  13. Groove of the tendon of the peroneus longus muscle, sulcustendinis t. peronei (fibularis) longi. Located on the inferolateral side of the cuboid bone. Rice. G.
  14. Tuberosity of the cuboid bone, tuberositas ossis cuboidei. Located on the lower surface of the bone, proximal to the groove of the peroneus longus tendon, Fig. G.
  15. Calcaneal process, processus calcaneus. Located on the plantar surface of the bone. Contains the lower segment of the proximal articular surface, facing upward and intended for articulation with calcaneus. Rice. G.
  16. Metatarsus, metatarsus. The part of the foot located between the tarsus and toes. Rice. V, G.
  17. I - Y metatarsal bones, ossa metatarsi (metatarsalia). Rice. G.
  18. The base of the metatarsal bone, basis metatarsalis. Proximal, thickened end. Rice. G.
  19. Body of the metatarsal bone, corpus metatarsal. Rice. G.
  20. Metatarsal head, caput metatarsals Fig. V, G.
  21. Tuberosity of the first metatarsal bone, tuberositas ossis metatarsalis primi (I). Located at the proximal end of the bone. Directed downwards and laterally. Rice. G.
  22. Tuberosity of the fifth metatarsal bone, tuberositas ossis metatarsalis quinti (Y). Located at the proximal end of the bone and directed laterally. Insertion site of the peroneus brevis muscle. Rice. V, G.
  23. Finger bones, ossa digitorum. - Rice. V, G.
  24. Phalanx, phalanges.
  25. Proximal phalanx, phalanx proximalis. Rice. G.
  26. Middle phalanx, phalanx media. Rice. G.
  27. Distal phalanx, phalanx distalis. Nail phalanx. Rice. G.
  28. Tuberosity of the distal phalanx, tuberositas phalangis distalis. Located on the plantar side of the distal end. Place of attachment of the tactile ridge. Rice. G.
  29. Base of the phalanx, basis phalangis. Contains an ovoid or ellipsoidal articular surface. Rice. G.
  30. Body of the phalanx, corpus phalangis. Rice. G.
  31. Head of the phalanx, caput phalangis. Rice. G.
  32. Sesamoid bones, ossa sesamoidea. Located in tendons or ligaments. Constantly present on the plantar side of the first metatarsal, located along the edges of the long flexor tendon thumb. Rice. G.

In the area of ​​the tarsus, tarsus, are represented by the following bones: talus, calcaneus, navicular, three wedge-shaped bones: medial, intermediate and lateral, and cuboid. The metatarsus, metatarsus, includes 5 metatarsal bones. The phalanges, phalanges, of the toes are called the same as the phalanges of the fingers.

Tarsal bones, ossa tarsi, are located in two rows: the proximal one includes the talus and calcaneus, the distal one includes the scaphoid, cuboid and three sphenoid bones. The tarsal bones articulate with the tibia bones; the distal row of tarsal bones articulates with the metatarsal bones.

Talus, talus, is the only bone of the foot that articulates with the bones of the lower leg. Its posterior section is the body of the talus, corpus tali. Anteriorly, the body passes into a narrowed section of the bone - the neck of the talus, collum tali; the latter connects the body with the forward-directed head of the talus, caput tali. The talus bone is covered from above and on the sides in the form of a fork by the bones of the lower leg. The ankle joint, articulatio talocruralis, is formed between the bones of the tibia and the talus. Accordingly, the articular surfaces are: the upper surface of the talus, facies superior ossis tali, having the shape of a block - the block of the talus, trochlea tali, and the lateral, lateral and medial, ankle surfaces, facies malleolaris lateralis et facies malleolaris medialis. The upper surface of the block is convex in the sagittal direction and concave in the transverse direction.

The lateral and medial ankle surfaces are flat. The lateral malleolar surface extends to the upper surface of the lateral process of the talus, processus lateralis tali. Back surface The body of the talus is crossed from top to bottom by the groove of the tendon of the long flexor of the big toe, sulcus tendinis m. flexoris hallucis longi. The groove divides the posterior edge of the bone into two tubercles: the larger medial tubercle, tuberculum mediale, and the smaller lateral tubercle, tuberculum laterale. Both tubercles, separated by a groove, form the posterior process of the talus, processus posterior tali. Lateral tubercle of the posterior process of the talus

sometimes, in the case of independent ossification, it represents a separate triangular bone, os trigonum.

On the lower surface of the body in the posterolateral region there is a concave posterior calcaneal articular surface, facies articularis calcanea posterior. The anteromedial sections of this surface are limited by the groove of the talus, sulcus tali, which runs from back to front and laterally. Anterior and outward from this groove is the middle calcaneal articular surface, facies articularis calcanea media. Anterior to it lies the anterior calcaneal articular surface, facies articularis calcanea anterior.

Through the articular surfaces, the lower part of the talus articulates with the calcaneus. On the anterior part of the head of the talus there is a spherical scaphoid articular surface, facies articularis navicularis, through which it articulates with the scaphoid bone.


Calcaneus
, calcaneus, is located inferiorly and posteriorly to the talus. Its posteroinferior section is formed by a well-defined tubercle of the calcaneus, tuber calcanei. The lower parts of the tubercle from the lateral and medial sides pass into the lateral process of the tubercle of the calcaneus, processus lateralis tuberis calcanei, and into the medial process of the tubercle of the calcaneus, processus medialis tuberis calcanei. On the lower surface of the tubercle there is a calcaneal tubercle, tuberculum calcanei, located at the anterior end of the line of attachment of the long plantar ligament, lig. plantare longum.

On the anterior surface of the calcaneus there is a saddle-shaped cuboid articular surface, facies articularis cuboidea, for articulation with the cuboid bone.

In the anterior section of the medial surface of the calcaneus there is a short and thick process - the support of the talus, sustentaculum tali. Along the lower surface of this process runs a groove for the tendon of the long flexor of the big toe, sulcus tendinis m. flexoris hallucis longi.

On the lateral surface of the calcaneus, in the anterior section, there is a small fibular block, trochlea fibularis, behind which there is a groove of the tendon of the long peroneal muscle, sulcus tendinis m. peronei (fibularis) longi.

On the upper surface of the bone, in the middle section, there is an extensive posterior talar articular surface, facies articularis talaris posterior. Anterior to it lies the groove of the calcaneus, sulcus calcanei, running from back to front and laterally. Anterior to the groove, along the medial edge of the bone, two articular surfaces stand out: the middle talar articular surface, facies articularis talaris media, and in front of it is the anterior talar articular surface, facies articularis talaris anterior, corresponding to the surfaces of the same name on the talus. When the talus is placed on the calcaneus, the anterior sections of the grooves of the talus and the grooves of the calcaneus form a depression - the sinus of the tarsus, sinus tarsi, which can be felt as a small depression.

Scaphoid, os naviculare, flattened in front and behind, lies in the area of ​​​​the inner edge of the foot. On the posterior surface of the bone there is a concave articular surface, through which it articulates with the articular surface of the head of the talus. The upper surface of the bone is convex. The anterior surface of the bone bears an articular surface for articulation with the three sphenoid bones. The boundaries defining the places of articulation of the scaphoid bone with each sphenoid bone, serve small scallops.

On the lateral surface of the bone there is a small articular surface - the place of articulation with the cuboid bone. The inferior surface of the scaphoid is concave. In its medial section there is the tuberosity of the scaphoid bone, tuberositas ossis navicularis.

Sphenoid bones, ossa cuneiformia, three in number, are located in front of the scaphoid bone. There are medial, intermediate and lateral sphenoid bones. The intermediate sphenoid bone is shorter than the others, so the anterior, distal, surfaces of these bones are not at the same level. They have articular surfaces for articulation with the corresponding metatarsal bones,
The base of the wedge (the wider part of the bone) faces downwards at the medial sphenoid bone, and upwards at the intermediate and lateral sphenoid bones.

The posterior surfaces of the sphenoid bones have articular platforms for articulation with the scaphoid bone.
The medial sphenoid bone, os cuneiforme mediale, on its concave lateral side bears two articular surfaces for articulation with the intermediate sphenoid bone, os cuneiforme intermedium, and with II metatarsal bone.

The intermediate sphenoid bone, os cuneiforme intermedium, has articular platforms: on the medial surface - for articulation with the medial sphenoid bone, os cuneiforme mediale, on the lateral side - for articulation with the lateral sphenoid bone, os cuneiforme laterale.

The lateral cuneiforme bone, os cuneiforme laterale, also has two articular surfaces: on the medial side for articulation with the intermediate sphenoid bone, os cuneiforme intermedium, and the base of the second metatarsal bone, os metatarsale II, and on the lateral side with the cuboid bone, os cuboideum.

Cuboid, os cuboideum, is located outward from the lateral sphenoid bone, in front of the calcaneus and behind the base of the IV and V metatarsals.

The upper surface of the bone is rough, on the medial there are articular platforms for articulation with the lateral sphenoid bone, os cuneiforme laterale, and the scaphoid bone, os naviculare. On the lateral edge of the bone there is a tuberosity of the cuboid bone directed downwards, tuberositas ossis cuboidei. Anterior to it begins the groove of the tendon of the long peroneal muscle, sulcus tendinis m. peronei longi, which passes to the lower surface of the bone and crosses it obliquely behind and outside, anteriorly and inwardly, according to the course of the tendon of the muscle of the same name.

The posterior surface of the bone has a saddle-shaped articular surface for
Articulations with the same articular surface of the calcaneus. The protrusion of the inferomedial portion of the cuboid bone, bordering the edge of this articular surface, is called the calcaneal process, processus calcaneus. It provides support to the anterior end of the heel bone.
The anterior surface of the cuboid bone has an articular surface divided by a scallop for articulation with the IV and V metatarsals, os metatarsale IV et os metatarsale V.

Metatarsals
The metatarsal bones, ossa metatarsalia, are represented by five (I-V) thin long bones located in front of the tarsus. In each metatarsal bone there is a body, corpus, and two epiphysis: proximal - base, basis, and distal - head, caput.
The bones are counted from the medial edge of the foot (from the big toe to the little toe). Of the 5 metatarsal bones, bone I is shorter but thicker than the others, bone II is the longest. The bodies of the metatarsal bones are triangular. The upper, dorsal surface of the body is somewhat convex, the other two are the lower (plantar) surfaces, converging at the bottom, forming a pointed ridge.
The bases of the metatarsal bones represent their most massive part. They have the shape of a wedge, which, with its widened part, is directed upward at the I-IV metatarsal bones, and towards the medial side at the V metatarsal bone. Side surfaces the bases have articular platforms through which adjacent metatarsal bones articulate with each other.
On the posterior surfaces of the bases there are articular surfaces for articulation with the tarsal bones. On the lower surface of the base of the first metatarsal bone there is a tuberosity of the first metatarsal bone, tuberositas ossis metatarsalis primi. U
The fifth metatarsal bone also has a tuberosity in the lateral part of the base
V metatarsal bone, tuberositas ossis metatarsalis quinti, which can be easily palpated. The anterior ends, or heads, of the metatarsal bones are compressed laterally. The peripheral section of the heads has spherical articular surfaces that articulate with the phalanges of the fingers. On the lower surface of the head of the first metatarsal bone, on the sides, there are two small smooth areas to which the sesamoid bones, ossa sesamoidea, of the big toe are adjacent. The head of the first metatarsal bone can be easily palpated.
In addition to the indicated sesamoid bones in the area of ​​the metatarsophalangeal joint of the thumb, there is one sesamoid bone in the interphalangeal joint of the same finger, as well as unstable sesamoid bones in the thickness of the tendon of the long peroneal muscle, in the area of ​​the plantar surface of the cuboid bone.
Between the metatarsal bones there are 4 interosseous spaces, spatia interossea metatarsi, which are filled with interosseous muscles.

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    2 anterior talar articular surface

See also in other dictionaries:

    Talus- (talus) The talus, talus, is the only bone of the collum tali; the latter connects the body with the forward-facing foot, which articulates with the bones of the lower leg. Its posterior section is the head of the talus, caput tali. The talus bone on top is called... Atlas of Human Anatomy

    Talus- Astragal (shown syn... Wikipedia

    Foot bones- in the area of ​​the tarsus, tarsus, are represented by the following bones: talus, calcaneus, navicular, three wedge-shaped bones: medial, intermediate and lateral, and cuboid. The metatarsus, metatarsus, includes 5 metatarsal bones. Phalanxes...... Atlas of Human Anatomy

    Skeleton of the free part of the lower limb- (pars libera membrae inferioris) consists of the femur, patella, leg bones and foot bones. The femur (os femoris) (Fig. 55, 56), as well as the humerus, ulna and radius, is a long tubular bone, the proximal epiphysis ... ... Atlas of Human Anatomy

    Bones of the lower limb - … Atlas of Human Anatomy

    Knee-joint- In education knee joint, articutatio genus, three bones are involved: distal epiphysis femur, proximal tibial epiphysis and patella. The articular surface of the femoral condyles is ellipsoidal, curvature... ... Atlas of Human Anatomy

    Ankle joint- The ankle joint, articulatio talocruralis, is formed by the articular surfaces of the distal epiphyses of the tibia and fibula and the articular surface of the trochlea of ​​the talus. On the tibia, the articular surface is represented by... ... Atlas of Human Anatomy

Includes seven spongy bones arranged in two rows. The proximal (posterior) row consists of two large bones: the talus and calcaneus; the remaining five tarsal bones form the distal (anterior) row.

Talus has a body, a head and a narrow part connecting them - a neck. The body of the talus is the largest part of the bone. Its upper part is a block of the talus with three articular surfaces. The upper surface is designed to articulate with the lower articular surface of the tibia.

Two other articular surfaces lying on the sides of the trochlea: the medial malleolar surface and the lateral malleolar surface articulate with the corresponding articular surfaces of the ankles of the tibia and fibula. The lateral malleolar surface is much larger than the medial one and reaches the lateral process of the talus.

Behind the trochlea, the posterior process of the talus extends from the body of the talus. The groove of the flexor hallucis longus tendon divides this process into a medial tubercle and a lateral tubercle. On the underside of the talus there are three articular surfaces for articulation with the calcaneus: the anterior calcaneal articular surface; the middle calcaneal articular surface and the posterior calcaneal articular surface. Between the middle and posterior articular surfaces there is a groove of the talus. The head of the talus is directed anteriorly and medially. To articulate it with the scaphoid bone, the rounded scaphoid articular surface is used.

Calcaneus- the largest bone of the foot. It is located under the talus bone and protrudes significantly from under it. At the back, the body of the calcaneus has a downwardly inclined tubercle of the calcaneus. On the upper side of the body of the calcaneus, three articular surfaces are distinguished: the anterior talar articular surface, the middle talar articular surface, and the posterior talar articular surface. These articular surfaces correspond to the calcaneal articular surfaces of the talus. Between the middle and posterior articular surfaces a groove of the calcaneus is visible, which, together with the corresponding groove on the talus, forms the sinus of the tarsus, the entrance to which is on the dorsum of the foot on the lateral side.

A short and thick process extends from the anterior superior edge of the calcaneus on the medial side - talus support. On the lateral surface of the calcaneus there is a groove for the tendon of the peroneus longus muscle. At the distal (anterior) end of the calcaneus, there is a cuboid articular surface for articulation with the cuboid bone.

Scaphoid located medially, between the talus and the three sphenoid bones. With its proximal concave surface it articulates with the head of the talus. The distal surface of the scaphoid is larger than the proximal one; it has three articular platforms for connection with the sphenoid bones. At the medial edge, the tuberosity of the scaphoid bone (the attachment site of the tibialis posterior muscle) is noticeable. The lateral aspect of the scaphoid may have an inconstant articular surface for articulation with the cuboid.

Sphenoid bones(medial, intermediate and lateral), located anterior to the navicular bone and located in the medial part of the foot. Of all the bones, the medial cuneiform bone is the largest, articulates with the base of the 1st metatarsal bone; intermediate sphenoid bone - with 2 metatarsal bone; lateral sphenoid bone - with 3rd metatarsal bone.

Cuboid located on the lateral side of the foot between the heel bone and the last two metatarsal bones. At the junction of these bones there are articular surfaces. In addition, on the medial side of the cuboid bone there is an articular platform for the lateral sphenoid bone, and somewhat posteriorly and smaller in size for articulation with the scaphoid bone. On the lower (plantar) side there is a tuberosity of the cuboid bone, in front of which there is a groove for the tendon of the peroneus longus muscle.

Free part of the lower limb Bones of the foot

Talus

rice. 195. Astragalus, talus, right. A - bottom view; B - rear view.

Talus , talus (see fig.) is the only bone of the foot that articulates with the bones of the lower leg. Its posterior section is body of the talus, corpus tali. Anteriorly, the body passes into a narrowed section of the bone - neck of the talus, collum tali; the latter connects the body with the forward direction head of the talus, caput tali. The talus bone is covered from above and on the sides in the form of a fork by the bones of the lower leg. The ankle joint, articulatio talocruralis, is formed between the bones of the tibia and the talus. Accordingly, the articular surfaces are: upper surface of the talus, facies superior ossis tali, having the shape of a block - trochlea tali, and lateral, lateral And medial, ankle surfaces, facies malleolaris lateralis et facies malleolaris medialis. The upper surface of the block is convex in the sagittal direction and concave in the transverse direction.

The lateral and medial ankle surfaces are flat. Lateral malleolar surface extends to superior surface lateral process of the talus, processus lateralis tali. The posterior surface of the body of the talus crosses from top to bottom groove of the tendon of the long flexor of the big toe sulcus tendinis m. flexoris hallucis longi. The groove divides the posterior edge of the bone into two tubercles: the larger medial tubercle, tuberculum mediale, and smaller lateral tubercle, tuberculum laterale. Both tubercles, separated by a groove, form the posterior process of the talus, processus posterior tali. The lateral tubercle of the posterior process of the talus sometimes, in the case of its independent ossification, is a separate triangular bone, os trigonum.

On the lower surface of the body in the posterolateral region there is a concave posterior calcaneal articular surface, facies articularis calcanea posterior. The anteromedial sections of this surface are limited by the surface that runs from back to front and laterally groove of the talus, sulcus tali. Anterior and outward from this groove is located middle calcaneal articular surface, facies articularis calcanea media. Does not lie in front of anterior calcaneal articular surface, facies articularis calcanea anterior.

Through the articular surfaces, the lower part of the talus articulates with the calcaneus. The anterior part of the head of the talus has a spherical shape scaphoid articular surface, facies articularis navicularis, through which it articulates with