what are facet joints in the back?
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facet joints: joints located on the top and bottom of each vertebra that connect the vertebrae to each other and permit back motion. joint capsule: a sac surrounding a synovial joint.
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At the top of the spine, the atlas and axis form a pivot joint that allows for rotation of the head. (4) A condyloid joint allows for circular motion, flexion, and extension.
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['Synarthroses (immovable). These are fixed or fibrous joints. ... ', 'Amphiarthroses (slightly movable). ... ', 'Diarthroses (freely movable).']
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A joint connects two or more bones in your body and functions to promote motion. In your spine, the joints connecting each of your vertebrae are known as facet joints. Other names for facet joints include zygapophyseal or apophyseal joints, or your doctor may refer to them as simply facets.
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The facet joints are the connections between the bones of the spine. The nerve roots pass through these joints to go from the spinal cord to the arms, legs and other parts of the body. These joints also allow the spine to bend and twist, and they keep the back from slipping too far forward or twisting without limits.
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Facet arthrosis is a degenerative spinal condition like arthritis in which bony enlargements, called osteophytes or bone spurs, grow and enlarge the facet joints. Facet arthrosis occurs most commonly in the lumbar spine, or lower back region.
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Extensor, Flexor and Oblique Muscles and Back Pain The extensor muscles are attached to back of the spine and enable standing and lifting objects. These muscles include the large paired muscles in the lower back, called erector spinae, which help hold up the spine, and gluteal muscles.
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Description. Illustration highlighting facet joint articulation between two vertebrae. Also known as the zygapophyseal or apophyseal joint, is a synovial joint between the superior articular process of one vertebra and the inferior articular process of the vertebra directly above it.
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Synovial joints are the most movable type of joint found in the human body. Joints are formed where bones come together. ... Pivot joints are found in your neck vertebrae, while hinge joints are located in your elbows, fingers, and knees. Saddle and plane joints are found in your hands.
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Joints allow motion (articulation). The joints in the spine are commonly called Facet Joints. Other names for these joints are Zygapophyseal or Apophyseal Joints. Each vertebra has two sets of facet joints. One pair faces upward (superior articular facet) and one downward (inferior articular facet).
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RA-related inflammation in the facet joints can cause back pain. In some cases, extended inflammation can destroy the facet joints. As a result, the vertebrae become less stable. Instability in the spine can cause a vertebra to slip out of place, which usually means that the upper vertebra slides over the lower one.
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Cervical facet osteoarthritis, sometimes called cervical facet joint syndrome, is a degenerative condition that causes pain and stiffness in the cervical, or neck, region of the spine. The cervical spine includes the top seven levels of the spine, labeled C1 through C7.
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The pain is often a diffuse, dull ache in the low back directly over the spine that can spread to the buttocks. In the neck it can be felt in the shoulders and back of the skull. Movements such as bending backwards or twisting sideways towards the affected joint will cause pain.
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['Lordosis. Also called swayback, the spine of a person with lordosis curves significantly inward at the lower back.', 'Kyphosis. Kyphosis is characterized by an abnormally rounded upper back (more than 50 degrees of curvature).', 'Scoliosis.']
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The spine normally curves at the neck, the torso and the lower back area. When the spine curves too far inward, the condition is called lordosis or swayback. Lordosis can cause pain that sometimes affects the ability to move. It is usually found in the lower back.
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['Planar Joints. Planar joints have bones with articulating surfaces that are flat or slightly curved faces. ... ', 'Hinge Joints. ... ', 'Condyloid Joints. ... ', 'Saddle Joints. ... ', 'Ball-and-Socket Joints.']
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These joints can be described as planar, hinge, pivot, condyloid, saddle, or ball-and-socket joints. Figure 1. Different types of joints allow different types of movement. Planar, hinge, pivot, condyloid, saddle, and ball-and-socket are all types of synovial joints.