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Synovial joints are the most common type of joint in the body (Figure 9.4.1). A key structural characteristic for a synovial joint that is not seen at fibrous or cartilaginous joints is the presence of a joint cavity. This fluid-filled space is the site at which the articulating surfaces of the bones contact each other.
- Lindsay M. Biga, Sierra Dawson, Amy Harwell, Robin Hopkins, Joel Kaufmann, Mike LeMaster, Philip Mat...
- 2019
Sep 25, 2024 · Figure 7.3.1 7.3. 1: Synovial Joints. Synovial joints allow for smooth movements between the adjacent bones. The joint is surrounded by an articular capsule that defines a joint cavity filled with synovial fluid. The articulating surfaces of the bones are covered by a thin layer of articular cartilage.
- Articular Capsule
- Articular Cartilage
- Synovial Fluid
The articular capsulesurrounds the joint and is continuous with the periosteum of articulating bones. It consists of two layers: 1. Fibrous layer (outer) – consists of white fibrous tissue, known the capsular ligament. It holds together the articulating bones and supports the underlying synovium. 2. Synovial layer (inner)– a highly vascularised lay...
The articulating surfacesof a synovial joint (i.e. the surfaces that directly contact each other as the bones move) are covered by a thin layer of hyaline cartilage. The articular cartilage has two main roles: (i) minimising friction upon joint movement, and (ii) absorbing shock.
Thesynovial fluidis located within the joint cavity of a synovial joint. It has three primary functions: 1. Lubrication 2. Nutrient distribution 3. Shock absorption. Articular cartilage is relatively avascular, and is reliant upon the passive diffusion of nutrients from the synovial fluid.
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Synovial joints are the most common type of joint in the body (Figure 8.5.1 8.5. 1). A key structural characteristic for a synovial joint that is not seen at fibrous or cartilaginous joints is the presence of a joint cavity. This fluid-filled space is the site at which the articulating surfaces of the bones contact each other.
A few synovial joints of the body have a fibrocartilage structure located between the articulating bones. This is called an articular disc, which is generally small and oval-shaped, or a meniscus, which is larger and C-shaped. [2] [3]. Synovial joints are often further classified by the type of movements they permit.
synovial joint at which the convex surface of one bone articulates with the concave surface of a second bone; includes the elbow, knee, ankle, and interphalangeal joints; functionally classified as a uniaxial joint. intracapsular ligament. ligament that is located within the articular capsule of a synovial joint.
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Why do synovial joints have articulating bone surfaces?
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Why do synovial joints have articular discs?
Which structural characteristic of a synovial joint is not seen at fibrous or cartilaginous joints?
Synovial joints are the most common type of joint in the body (Figure 9.8). A key structural characteristic for a synovial joint that is not seen at fibrous or cartilaginous joints is the presence of a joint cavity. This fluid-filled space is the site at which the articulating surfaces of the bones contact each other.
