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    Related Topics

    From Musculoskeletal System

    Rectus Abdominis
    Abs muscle that flexes the trunk.
    Ethmoid Bone
    Bone forming part of the nasal cavity and the orbit.
    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.
    Gomphoses
    Fibrous joints where a peg fits into a socket (e.g., teeth in jaw).
    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.
    Coccygeus
    Pelvic floor muscle supporting the coccyx.
    Sacroiliac Ligaments
    Ligaments connecting the sacrum to the iliac bones.
    Thoracic Vertebrae (T1 - T12)
    Vertebrae in the upper and mid-back (T1-T12).
    Syndesmoses
    Fibrous joints where bones are connected by ligaments.
    Radius
    Forearm bone on the thumb side.
    Ischium
    Part of the pelvis that supports weight while sitting.
    Soleus
    Calf muscle responsible for plantarflexion of the foot.
    Cervical Vertebrae (C1 - C7)
    Vertebrae in the neck region (C1-C7).
    Hamstrings
    Biceps Femoris, Semitendinosus, Semimembranosus.
    Clavicle
    Collarbone connecting the arm to the body.
    Ball-and-Socket Joints
    e.g., shoulder, hip
    Achilles Tendon
    Tendon connecting the calf muscle to the heel bone.
    Mandible
    Lower jawbone that houses the teeth.
    Adductors
    Muscles that bring the thighs toward the midline.
    Lateral Collateral Ligament (LCL)
    Knee ligament that stabilizes the outer knee.
    Metacarpals (5 bones)
    5 bones forming the palm of the hand.
    Carpals (8 bones)
    8 wrist bones.
    Rotator Cuff Muscles
    Supraspinatus, Infraspinatus, Teres Minor, Subscapularis.
    Obliques (External and Internal)
    Muscles responsible for torso rotation.
    Femur
    Thigh bone, the longest and strongest bone in the body.

    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? Your spinal cord is protected by the vertebral column.