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Quadrigeminal brachium may refer to: Inferior colliculus, also known by the Latin term inferior quadrigeminal brachium; Superior colliculus, ...
The brachium of superior colliculus (or superior brachium) is a branch that extends laterally from the superior colliculus, and, passing to the thalamus between the pulvinar and the medial geniculate nuclei, is partly continued into an eminence called the lateral geniculate nucleus, and partly into the optic tract.
Osteoarthritis is the most common form of arthritis, affecting about 237 million people or 3.3% of the world's population as of 2015. [4] [12] It becomes more common as people age. [1] Among those over 60 years old, about 10% of males and 18% of females are affected. [2] Osteoarthritis is the cause of about 2% of years lived with disability. [12]
Spondyloarthritis (SpA), also known as spondyloarthropathy, is a collection of syndromes connected by genetic predisposition and clinical symptoms. [1] The best-known subtypes are enteropathic arthritis (EA), psoriatic arthritis (PsA), ankylosing spondylitis (AS), and reactive arthritis (ReA). [2]
In the more narrow sense, it refers to spinal osteoarthritis, the age-related degeneration of the spinal column, which is the most common cause of spondylosis. The degenerative process in osteoarthritis chiefly affects the vertebral bodies, the neural foramina and the facet joints ( facet syndrome ).
Spinal arthritis [11] – most commonly osteoarthritis – is the inflammation of superior and inferior facet joints within the spine. This leads to the formation of Osteophytes [11] which grow around the joints. This contributes to narrowing the spinal canal and compressing the spinal cord in the corresponding region.
There are many recognized spinal diseases, some more common than others. Spinal disease also includes cervical spine diseases, which are diseases in the vertebrae of the neck. A lot of flexibility exists within the cervical spine and because of that, it is common for an individual to damage that area, especially over a long period of time.
They allow for flexion and extension and limit lateral flexion in the cervical spine. Pathological processes that can occur in these joints include degenerative changes or hypertrophic arthritis, resulting in foraminal stenosis and nerve compression.