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Related Concept Videos

Functional Classification of Joints01:09

Functional Classification of Joints

8.1K
Functional Classification of Joints
The functional classification of joints is determined by the amount of mobility between the adjacent bones. Joints are functionally classified as a synarthrosis or immobile joint, an amphiarthrosis or slightly moveable joint, or as a diarthrosis, a freely moveable joint. Fibrous and cartilaginous joints can be functionally classified as either synarthroses  or amphiarthroses, whereas all synovial joints are classified as diarthroses.
Synarthrosis
An...
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Knee Joint01:23

Knee Joint

3.4K
The knee joint is the most complicated joint in the body. It consists of three articulations– two tibiofemoral and one patellofemoral. As is characteristic of synovial joints, the knee joint has a thin articular capsule that partially surrounds this joint cavity. Additionally, several ligaments, muscles, and cartilaginous structures support the movement of the knee.
A total of seven ligaments support the knee joint. The patellar ligament, which is also attached to the quadriceps femoris...
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Structural Joints: Synovial Joints01:16

Structural Joints: Synovial Joints

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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...
8.0K
Structural Classification of Joints01:20

Structural Classification of Joints

8.0K
Joints, also known as articulations, are classified based on their structural characteristics, i.e., based on whether the articulating surfaces of the adjacent bones are directly connected by fibrous connective tissue or cartilage, or whether the articulating surfaces contact each other within a fluid-filled joint cavity. These differences serve to divide the joints of the body into three structural classifications.
A fibrous joint is where the adjacent bones are united by fibrous connective...
8.0K
Joints01:26

Joints

28.6K
Joints, also called articulations or articular surfaces, are points at which ligaments or other tissues connect adjacent bones. Joints permit movement and stability, and can be classified based on their structure or function.
Structural joint classifications are based on the material that makes up the joint as well as whether or not the joint contains a space between the bones. Joints are structurally classified as fibrous, cartilaginous, or synovial.
Fibrous Joints Are Immovable
The bones of a...
28.6K
Ultrasonography01:17

Ultrasonography

6.5K
Ultrasonography is an imaging technique that uses high-frequency sound waves to visualize the body's internal structures. It is a non-invasive and safe procedure that does not involve the use of ionizing radiation, making it widely used in various medical fields. Ultrasonography is used to study heart function, blood flow in the neck or extremities, certain conditions such as gallbladder disease, and fetal growth and development.
During an ultrasonography procedure, a handheld device called...
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Related Experiment Video

Updated: Apr 29, 2026

A Probing Device for Quantitatively Measuring the Mechanical Properties of Soft Tissues during Arthroscopy
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Arthroscopic anatomy.

J J Joyce

    Orthopedics
    |May 15, 2014
    PubMed
    Summary
    This summary is machine-generated.

    This study details the arthroscopic visualization of knee structures, covering instrument insertion techniques and potential viewing challenges. Understanding these aspects is crucial for accurate knee arthroscopy.

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    A Probing Device for Quantitatively Measuring the Mechanical Properties of Soft Tissues during Arthroscopy
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    Area of Science:

    • Orthopedic Surgery
    • Knee Arthroscopy
    • Anatomical Visualization

    Background:

    • Arthroscopy provides direct visualization of intra-articular knee structures.
    • Standardized approaches are essential for comprehensive knee examination.
    • Potential obstacles can impede diagnostic accuracy during arthroscopic procedures.

    Discussion:

    • This content describes the typical arthroscopic views of key knee anatomy.
    • It outlines common instrument pathways for accessing different knee compartments.
    • Challenges such as fluid distension, tissue obscuration, and instrument impingement are discussed.

    Key Insights:

    • Detailed description of arthroscopic knee anatomy.
    • Guidance on optimal instrument placement and trajectory.
    • Identification of common visualization impediments in knee arthroscopy.

    Outlook:

    • Enhanced understanding of arthroscopic knee anatomy.
    • Improved surgical planning and execution.
    • Potential for reduced complications and improved patient outcomes through better visualization.