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Tarsal Joint
The intertarsal joint are the joints of the tarsal bones in the foot. There are seven specific inter tarsal joints (articulations) in the human foot: * Subtalar joint * Talocalcaneonavicular joint * Calcaneocuboid joint The calcaneocuboid joint is the joint between the calcaneus and the cuboid bone. Structure The calcaneocuboid joint is a type of saddle joint between the calcaneus and the cuboid bone. Ligaments There are five ligaments connecting the calcan ... * Cuneonavicular joint * Cuboideonavicular joint * Intercuneiform joints Foot Joints Lower limb anatomy {{musculoskeletal-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tarsometatarsal Articulations
The tarsometatarsal joints (Lisfranc joints) are arthrodial joints in the foot. The tarsometatarsal joints involve the first, second and third cuneiform bones, the cuboid bone and the metatarsal bones. The eponym of Lisfranc joint is 18th-19th century surgeon and gynecologist, Jacques Lisfranc de St. Martin. Structure Bones The bones entering into their formation are the first, second, and third cuneiforms, and the cuboid bone, which articulate with the bases of the metatarsal bones. The first metatarsal bone articulates with the first cuneiform; the second is deeply wedged in between the first and third cuneiforms articulating by its base with the second cuneiform; the third articulates with the third cuneiform; the fourth, with the cuboid and third cuneiform; and the fifth, with the cuboid. The bones are connected by dorsal, plantar, and interosseous ligaments. Dorsal ligaments The dorsal ligaments are strong, flat bands. The first metatarsal is joined to the first cuneif ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Synovial Cavity
A synovial joint, also known as diarthrosis, joins bones or cartilage with a fibrous joint capsule that is continuous with the periosteum of the joined bones, constitutes the outer boundary of a synovial cavity, and surrounds the bones' articulating surfaces. This joint unites long bones and permits free bone movement and greater mobility. The synovial cavity/joint is filled with synovial fluid. The joint capsule is made up of an outer layer of fibrous membrane, which keeps the bones together structurally, and an inner layer, the synovial membrane, which seals in the synovial fluid. They are the most common and most movable type of joint in the body of a mammal. As with most other joints, synovial joints achieve movement at the point of contact of the articulating bones. Structure Synovial joints contain the following structures: * Synovial cavity: all diarthroses have the characteristic space between the bones that is filled with synovial fluid * Joint capsule: the fibrous cap ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Foot
The foot ( : feet) is an anatomical structure found in many vertebrates. It is the terminal portion of a limb which bears weight and allows locomotion. In many animals with feet, the foot is a separate organ at the terminal part of the leg made up of one or more segments or bones, generally including claws or nails. Etymology The word "foot", in the sense of meaning the "terminal part of the leg of a vertebrate animal" comes from "Old English fot "foot," from Proto-Germanic *fot (source also of Old Frisian fot, Old Saxon fot, Old Norse fotr, Danish fod, Swedish fot, Dutch voet, Old High German fuoz, German Fuß, Gothic fotus "foot"), from PIE root *ped- "foot". The "plural form feet is an instance of i-mutation." Structure The human foot is a strong and complex mechanical structure containing 26 bones, 33 joints (20 of which are actively articulated), and more than a hundred muscles, tendons, and ligaments.Podiatry Channel, ''Anatomy of the foot and ankle'' The joints of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Joint
A joint or articulation (or articular surface) is the connection made between bones, ossicles, or other hard structures in the body which link an animal's skeletal system into a functional whole.Saladin, Ken. Anatomy & Physiology. 7th ed. McGraw-Hill Connect. Webp.274/ref> They are constructed to allow for different degrees and types of movement. Some joints, such as the knee, elbow, and shoulder, are self-lubricating, almost frictionless, and are able to withstand compression and maintain heavy loads while still executing smooth and precise movements. Other joints such as sutures between the bones of the skull permit very little movement (only during birth) in order to protect the brain and the sense organs. The connection between a tooth and the jawbone is also called a joint, and is described as a fibrous joint known as a gomphosis. Joints are classified both structurally and functionally. Classification The number of joints depends on if sesamoids are included, age of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tarsus (skeleton)
In the human body, the tarsus is a cluster of seven articulating bones in each foot situated between the lower end of the tibia and the fibula of the lower leg and the metatarsus. It is made up of the midfoot (Cuboid bone, cuboid, medial, intermediate, and lateral cuneiform bone, cuneiform, and navicular) and hindfoot (Talus bone, talus and calcaneus). The tarsus articulates with the bones of the metatarsus, which in turn articulate with the proximal phalanges of the toes. The joint between the tibia and fibula above and the tarsus below is referred to as the ankle, ankle joint proper. In humans the largest bone in the tarsus is the calcaneus, which is the weight-bearing bone within the heel of the foot. Human anatomy Bones The talus bone or ankle bone is connected superiorly to the two bones of the lower leg, the tibia and fibula, to form the ankle, ankle joint or talocrural joint; inferiorly, at the subtalar joint, to the calcaneus or heel bone. Together, the talus and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subtalar Joint
In human anatomy, the subtalar joint, also known as the talocalcaneal joint, is a joint of the foot. It occurs at the meeting point of the Talus bone, talus and the calcaneus. The joint is classed structurally as a synovial joint, and functionally as a plane joint. Structure The talus is oriented slightly obliquely on the anterior surface of the calcaneus. There are three points of articulation between the two bones: two anteriorly and one posteriorly. The three articulations are known as facets, and they are the posterior, middle and anterior facets. * At the ''anterior and middle talocalcaneal articulation'', wikt:convex, convex areas of the talus fits on to wikt:concave, concave surfaces of the calcaneus. * The ''posterior talocalcaneal articulation'' is formed by a concave surface of the talus and a convex surface of the calcaneus. The sustentaculum tali forms the floor of middle facet, and the anterior facet articulates with the head of the talus, and sits lateral and co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calcaneocuboid Joint
The calcaneocuboid joint is the joint between the calcaneus and the cuboid bone. Structure The calcaneocuboid joint is a type of saddle joint between the calcaneus and the cuboid bone. Ligaments There are five ligaments connecting the calcaneus and the cuboid bone, forming parts of the articular capsule: * the dorsal calcaneocuboid ligament. * part of the bifurcated ligament. * the long plantar ligament. * and the plantar calcaneocuboid ligament. Function The calcaneocuboid joint is conventionally described as among the least mobile joints in the human foot. The articular surfaces of the two bones are relatively flat with some irregular undulations, which seem to suggest movement limited to a single rotation and some translation. However, the cuboid rotates as much as 25° about an oblique axis during Inversion (kinesiology), inversion-Eversion (kinesiology), eversion in a movement that could be called Involution (medicine), involution. Clinical significance The calcaneo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cuneonavicular Joint
The cuneonavicular joint is a joint (articulation) in the human foot. It is formed between the navicular bone and the three cuneiform bones. The navicular and cuneiform bones are connected by dorsal and plantar ligaments. Dorsal ligaments The dorsal ligaments are three small bundles, one attached to each of the cuneiform bones. The bundle connecting the navicular with the medial cuneiform bone is continuous around the medial side of the articulation with the plantar ligament which unites these two bones. Plantar ligaments The plantar ligaments have a similar arrangement to the dorsal, and are strengthened by slips from the tendon of the tibialis posterior. Synovial membrane The synovial membrane of these joints is part of the great tarsal synovial membrane The great tarsal synovial membrane is a synovial membrane in the foot. The synovial membranes between the second and third, and the third and fourth metatarsal bones are part of the great tarsal synovial membrane; that betw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cuboideonavicular Joint
The cuboideonavicular joint is a joint (articulation) in the foot formed between the navicular bone and cuboid bone. The navicular bone is connected with the cuboid bone by the dorsal, plantar, and interosseous cuboideonavicular ligaments. It is a syndesmosis type fibrous joint.Standring, Susan. "Gray's Anatomy E-Book: The Anatomical Basis of Clinical Practice" Elsevier Health Sciences, 2015, p. 1437. The dorsal ligaments The dorsal cuboideonavicular ligament connects the lateral portion of the navicular to the posteromedial portion of the cuboid on the dorsal side. The plantar ligaments The plantar cuboideonavicular ligaments have a similar arrangement to the dorsal, and are strengthened by slips from the tendon of the tibialis posterior. Synovial membrane The synovial membrane of this joints is part of the great tarsal synovial membrane The great tarsal synovial membrane is a synovial membrane in the foot. The synovial membranes between the second and third, and the third an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Intercuneiform Joints
The intercuneiform joints are the joints (articulations among) the cuneiform bones. The term "cuneocuboid joint" is sometimes used to describe the joint between the cuboid and lateral cuneiform, but this term is not recognized by Terminologia Anatomica. Ligaments The three cuneiform bones and the cuboid bone are connected together by dorsal, plantar, and interosseous ligaments. Dorsal ligaments The dorsal ligaments consist of three transverse bands: one connects the first with the second cuneiform, another the second with the third cuneiform, and another the third cuneiform with the cuboid. Plantar ligaments The plantar ligaments have a similar arrangement to the dorsal, and are strengthened by slips from the tendon of the tibialis posterior. Interosseous ligaments The interosseous ligaments consist of strong transverse fibers which pass between the rough non-articular portions of the adjacent surfaces of the bones. Synovial membrane The synovial membrane of these joint ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Joints
A joint or articulation (or articular surface) is the connection made between bones, ossicles, or other hard structures in the body which link an animal's skeletal system into a functional whole.Saladin, Ken. Anatomy & Physiology. 7th ed. McGraw-Hill Connect. Webp.274/ref> They are constructed to allow for different degrees and types of movement. Some joints, such as the knee, elbow, and shoulder, are self-lubricating, almost frictionless, and are able to withstand compression and maintain heavy loads while still executing smooth and precise movements. Other joints such as suture (joint), sutures between the bones of the skull permit very little movement (only during birth) in order to protect the brain and the sense organs. The connection between a tooth and the jawbone is also called a joint, and is described as a fibrous joint known as a gomphosis. Joints are classified both structurally and functionally. Classification The number of joints depends on if Sesamoid bone, sesamoi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
