Synovial Joints
Synovial Joints - Related Videos
01:16
Structural Joints: Synovial Joints
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2025
Synovial joints are the most common type of joint in the body. A key structural characteristic for a synovial joint is the presence of a joint cavity. This fluid-filled space is where the articulating surfaces of the bones contact each other. Also, unlike fibrous or cartilaginous joints, the articulating bone surfaces at a synovial joint are not directly connected to each other with fibrous connective tissue or cartilage. This gives the bones of a synovial joint the ability to move smoothly...
01:07
Development of the Limb Synovial Joints
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2023
Joints form during embryonic development in conjunction with the formation and growth of the associated bones. The embryonic tissue that gives rise to all bones, cartilage, and connective tissues of the body is called mesenchyme. The mesenchymal stem cells differentiate into chondrocytes that form the hyaline cartilage, and later the cartilaginous model of the bone. This model further transforms into a bone. This process is known as endochondral ossification. During development, the limbs...
06:28
Anterior Cruciate Ligament Transection and Synovial Fluid Lavage in a Rodent Model to Study Joint Inflammation and Posttraumatic Osteoarthritis
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2025
Herein, we describe a surgical method to transect the anterior cruciate ligament (ACL) as a reliable model to induce knee osteoarthritis in rodents and methodologies for harvesting knee synovial fluid, measuring knee edema, and assessing osteoarthritis severity.
04:25
Harvesting Articular Cartilage From Joints of an Equine Donor: A Surgical Procedure to Isolate Vascular Connective Tissue From Cadaveric Joints of an Equine Donor
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2025
In this video, we demonstrate the extraction of articular cartilage from an equine cadaveric joint. The isolated articular cartilage can be used for further downstream analysis.
10:47
Isolation and Cellular Phenotyping of Mesenchymal Stem Cells Derived from Synovial Fluid and Bone Marrow of Minipigs
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Cited by 5 •
2016
A protocol establishing mesenchymal stem cells (MSCs) isolated from the synovial fluid and bone marrow of minipigs and non-invasively collected using syringe aspiration is presented. Cellular phenotyping was performed using flow cytometry after cell isolation and in vitro cultivation of bone marrow and synovial fluids derived from MSCs.
FAQs
Articular cartilage forms a smooth covering over the ends of bones, allowing them to move against one another with reduced friction. It also helps distribute loads across the joint rather than concentrating force at a single contact point. This combination supports controlled movement and helps explain why cartilage degeneration can impair normal joint function.
The synovial membrane produces fluid within the joint cavity that lubricates the articulating surfaces. By reducing friction, this fluid helps bones move more smoothly and contributes to efficient motion. Its role is especially important when studying how normal synovial joints maintain movement while the surrounding structures handle mechanical loads and preserve stability.
The fibrous capsule encloses the joint cavity, while ligaments guide and limit movement. Together, these structures help prevent motion from exceeding the joint's functional range while still permitting mobility. Their arrangement provides a biological balance between flexibility and skeletal stability, making it possible for a joint to move in a controlled rather than unrestricted way.
The shape of each joint is related to the movements it supports. The knee and elbow are associated with bending, whereas the shoulder and hip support rotation, and some joint surfaces allow gliding. Comparing these examples shows how anatomical form influences movement patterns and helps explain the specialized mechanical roles of individual joints.
Biological study connects joint structure with function by examining how cartilage, fluid, capsules, and ligaments contribute to movement and stability. Researchers can also compare the knee, shoulder, hip, and elbow to relate their shapes to bending, rotation, or gliding. This structural approach helps explain how synovial joints contribute to normal locomotion.
Synovial joint biology provides a framework for examining injuries, inflammation, cartilage degeneration, and disorders such as arthritis. These conditions can be considered in relation to the structures that normally reduce friction, distribute loads, guide motion, or maintain stability. Understanding those relationships helps connect changes in joint anatomy with disrupted movement and skeletal function.