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    Related Topics

    From Musculoskeletal System

    Coccygeus
    Pelvic floor muscle supporting the coccyx.
    Palatine Bones
    Bones forming part of the hard palate and nasal cavity.
    Ethmoid Bone
    Bone forming part of the nasal cavity and the orbit.
    Ulna
    Forearm bone on the pinky side.
    Sphenoid Bone
    Bone forming part of the base of the skull and sides of the orbits.
    Acetabulum
    The acetabulum is the pelvic socket that connects with the femoral head to form the hip joint, vital for stability, movement, and weight-bearing.
    Humerus
    Upper arm bone connecting the shoulder to the elbow.
    Gomphoses
    Fibrous joints where a peg fits into a socket (e.g., teeth in jaw).
    Cranial Bones
    Bones of the skull that protect the brain.
    Flexor Tendons
    Tendons that help flex the fingers and toes.
    Abductor Digiti Minimi Muscle
    The abductor digiti minimi muscle is a hypothenar muscle that abducts and flexes the little finger, aiding grip and precision in hand movements.
    Acromioclavicular Joint
    The acromioclavicular joint connects the clavicle and scapula at the top of the shoulder, enabling smooth scapular motion and stability during arm movements.
    Vertebral Column
    Spinal column consisting of vertebrae.
    Buccinator
    Muscle that helps with chewing and blowing air out.
    Medial Collateral Ligament (MCL)
    Knee ligament that stabilizes the inner knee.
    Pivot Joints
    e.g., atlanto-axial joint
    Anterior Scalene Muscle
    The anterior scalene muscle is a deep neck muscle that elevates the first rib during inspiration and aids in neck flexion and stability, located between key neurovascular structures.
    Sutures (in the skull)
    Fibrous joints between skull bones.
    Femur
    Thigh bone, the longest and strongest bone in the body.
    Ischium
    Part of the pelvis that supports weight while sitting.
    Interspinous Ligament
    Spinal ligament between adjacent vertebral spinous processes.
    Patellar Tendon
    Tendon connecting the patella to the tibia.
    Phalanges (14 bones)
    14 bones forming the toes.
    Sternocleidomastoid
    Muscle that rotates and flexes the neck.
    Latissimus Dorsi
    Back muscle responsible for arm adduction and extension.

    Gliding (Plane) Joints

    Reviewed by our medical team

    e.g., between carpals

    1. Overview

    Gliding joints, also called plane joints, are a type of synovial joint characterized by flat or slightly curved articular surfaces that slide past one another. These joints permit limited, non-axial movements, including small degrees of gliding or translation. While they do not allow for rotation or large angular motion, their contribution to joint flexibility, shock absorption, and overall body movement is essential, especially in areas requiring subtle coordination and support.

    2. Location

    Gliding joints are found in multiple regions of the body, especially where bones need to slide across each other for flexibility:

    • Wrist: Between the carpal bones (intercarpal joints).

    • Foot: Between the tarsal bones (intertarsal joints).

    • Vertebral column: Zygapophyseal (facet) joints between the articular processes of adjacent vertebrae.

    • Sternocostal joint: Between the sternum and costal cartilages (except the first rib).

    • Acromioclavicular joint: Between the acromion of the scapula and the clavicle.

    3. Structure

    Gliding joints are simple in anatomy but structurally adapted for small, controlled motion:

    • Articular surfaces: Flat or slightly curved surfaces covered by articular cartilage.

    • Synovial capsule: Encloses the joint space and secretes synovial fluid for lubrication.

    • Ligaments: Extrinsic and intrinsic ligaments stabilize the joint, restricting excessive motion.

    • Joint cavity: Contains synovial fluid which reduces friction and nourishes the cartilage.

    4. Function

    The primary function of gliding joints is to allow small, multidirectional movements:

    • Sliding and gliding: Bones slide past one another in multiple directions without angular movement.

    • Support mobility: Facilitate the fine-tuning of joint position and support larger joint complexes (e.g., the wrist or spine).

    • Distribute load: Help in spreading out mechanical forces across joint surfaces, reducing wear and tear.

    5. Physiological role(s)

    Although their movement range is small, gliding joints are crucial in overall musculoskeletal physiology:

    • Coordination: Contribute to the fine coordination of hand and foot movements.

    • Spinal flexibility: Facet joints enable slight movements between vertebrae that collectively result in spine flexion, extension, and rotation.

    • Shock absorption: Allow subtle shifting and movement to dissipate forces during impact or weight bearing.

    • Stability enhancement: Maintain alignment and joint congruency under stress through constrained sliding motions.

    6. Clinical Significance

    Several disorders and injuries may affect gliding joints due to their structural and mechanical roles:

    • Osteoarthritis:

      • Degeneration of cartilage in gliding joints (e.g., facet joints or wrist) can lead to stiffness, pain, and reduced motion.

    • Facet joint syndrome:

      • Inflammation or degeneration of spinal gliding joints results in localized back pain, often exacerbated by extension or twisting.

    • Joint instability:

      • Ligament laxity can cause excessive gliding motion, potentially leading to joint subluxation or dysfunction.

    • Subluxation in the wrist or foot:

      • Disruption of gliding joint alignment due to trauma can impair dexterity or gait and may require realignment or stabilization.

    • Post-surgical fusion (arthrodesis):

      • In severe degeneration, gliding joints may be surgically fused to eliminate pain at the cost of mobility (common in spine or midfoot).

    Did you know? Ligaments hold bones together and are tough yet flexible.