disk (redirected from separating disk)

disk (disk) a circular or rounded flat plate. Spelled also disc.

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articular disk  a pad of fibrocartilage or dense fibrous tissue present in some synovial joints.

Bowman's disks  flat, disklike plates making up striated muscle fibers.

choked disk  papilledema.

ciliary disk  the thin part of the ciliary body.

contained disk  protrusion of a nucleus pulposus in which the anulus fibrosus remains intact.

cupped disk  a pathologically depressed optic disk.

extruded disk  herniation of the nucleus pulposus through the anulus fibrosus, with the nuclear material remaining attached to the intervertebral disk.

gelatin disk  a disk or lamella of gelatin variously medicated, used chiefly in eye diseases.

growth disk  epiphyseal plate.

Hensen's disk  H band.

herniated disk  herniation of intervertebral disk; see under herniation.

intervertebral disks  layers of fibrocartilage between the bodies of adjacent vertebrae.

intra-articular disks  fibrous structures within the capsules of diarthrodial joints.

noncontained disk  herniation of the nucleus pulposus with rupture of the anulus fibrosus.

optic disk  the intraocular part of the optic nerve formed by fibers converging from the retina and appearing as a pink to white disk; because there are no sensory receptors in the region, it is not sensitive to stimuli.

Discus opticus (optic disk).

Placido's disk  a disk marked with concentric circles, used in examining the cornea.

protruded disk , ruptured disk herniation of intervertebral disk; see under herniation.

sequestered disk  a free fragment of the nucleus pulposus in the spinal canal outside of the anulus fibrosus and no longer attached to the intervertebral disk.

slipped disk  popular term for herniation of an intervertebral disk; see under herniation.

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disk or disc (dsk)

n.

1. A thin, flat, circular object or plate.

2. See lamella.

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Disk

A ringlike structure that fits between the vertebrae in the spine to protect the bones, nerves, and blood vessels. The outer layer is a tough, fibrous tissue, and the inner core is composed of more elastic tissue.

Mentioned in: Cervical Spondylosis, Sciatica

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disk

Etymology: Gk, diskos, flat plate

1 (chiefly in ophthalmology) a flat, circular platelike structure, such as an articular disk or an optic disc. Also spelled disc.

2 

Usage notes: informal.

an intervertebral disk.

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disk,

n a thin, flat, circular object.

disk, abrasive,

n a disk with abrasive particles attached to one or both of its surfaces or its edge.

disk, diamond,

n a disk of steel with diamond chips bonded to its surface.

disk, garnet,

n a disk with particles of garnet as the abrading medium.

disk, Joe Dandy,

n.pr the brand name for a separating disk. See also disk, separating.

disk, lightning,

n a steel separating disk.

disk, Merkel's,

n.pr See corpuscle, Merkel's.

disk, pack,

n a set of circular magnetic surfaces mounted coaxially on a shaft for computer storage of files. Can be used for storage of serial or direct access files.

disk, polishing,

n a disk with an extremely fine abrasive; used to finish and polish a surface.

disk, safe-side,

n a separating disk with abrasive on one side only; the other side is smooth.

disk, sandpaper,

n an abrasive disk with sandpaper as the abrading medium.

disk, separating,

n a disk of steel or hard rubber.

disk, storage,

n a storage device that uses magnetic recording on flat, rotating disks.

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disk

a circular or rounded flat plate. See also intervertebral disk.

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articular disk

a pad of fibrocartilage or dense fibrous tissue present in some synovial joints. As specialized intra-articular structures they differ from articular plates in that they have nerve and blood supplies.

choked disk

papilledema.

embryonic disk

a flattish area in a cleaved ovum in which the first traces of the embryo are seen. Called also germinal disk.

disk explosion

the lesion produced by a sudden extrusion of non-degenerate nucleus pulposus from intervertebral disks into the cervical vertebral canal as a result of trauma.

germinal disk

the embryo in a hen egg.

intra-articular disk

articular disk.

olfactory disk

these develop on the ventrolateral aspects of the head early in fetal development. They deepen, are surrounded by the developing nasal processes, then break through into the oral cavity and become the nasal cavities.

slipped disk

the popular name for prolapse of the nucleus of an intervertebral disk.

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Patient discussion about separating disk.

Q. I have a low back pain that radiates to my leg when i pick up stuff. Is it a disc herniation? I am a 43 years old bank teller. During the past 5 months I've suffered from a low back pain. The pain is not very strong, but it gets much worse while doing physical activity. When i walk or lift heavy things the pain is even stronger, and it radiates to my left leg. Can it be signs for disc herniation?

A. You can't tell for sure that your symptoms are due to a specific disc pathology.
When i had similar symptoms i went to the GP and he told me to lay down on your back. Then he slowly raised my left leg while the knee is kept in extension.
He said that If raising the leg over 60 degree exacerbates the pain its very likely to be disc herniation. But you should go to your GP and have him examine you.

Q. Is degenerative disc disease and arthritis the same thing? My husband was recently in a auto accident at work. They did a CT Scan of his head and neck. The doctor said that the CT Scan found that he has arthritis in his neck. After receiving the report ourselves to take to another doctor it reads: "There is minimal early degenerative disc disease with osteophyte formation predominately at C5-6. " My husband never had a problem with his neck before the accident

A. I also have degenerative disc and osteoarthritis, it is different. I have fibromyalgia, so muscle pain along with the bone and joint pain. I have had two fusions in my c-spine. The osteophyte is a bone spur according to my doctor and he told me they usually start with the onset of arthritis. So good luck and if I can help in anyway with Questions please email me!

Q. I am interested in information on working with fibromyalgiaI am having problems just coping at home! I have had 2 c-spine surgeries in 2 years, have degenerative disc disease, maigrains with nuurological tendencies, fatigue, deppression and fibromyalgia. I can't stand for long , sit for long, just making it through my daily life is stressful enough how do people manage to work? I have been off since August of last year but wan to feel well enough so I can return to the working world, Any suggestions? Tried Lyrica, doctor took me off the side affects for me were terrible!

A. I had a cervical spinal fusion, C4-5,C5-6 and a SLAP repair of my left shoulder. Initially after the fusion the headaches and tinlging went away and then 4 months later, while in a PT work conditioning prorgam, the headaches returned, along with nausea, vomiting and vertigo. My doctor basically ignored the symptoms for the last 5 months and I was finally referred to a neurologist who is treating me with Lyrica and Imitrex. The side effects are brutal and it has come done to living with the headaches and other symptoms vs. living in a fog unable to function. I have come to realize that there is no magic "fix" and all the meds mask the stymptoms temporarily but it's a tradeoff when you consider the side effects and possible long term health issues from meds such as Lyrica that have no research as far as long term health conditions. I found a natural remedy called Headache Free and I'm giving it a try.....good luck because I know exactly how debilitative these symptoms are