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| This glossary contains: 19186 medical terms |
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Osteoma
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Osteoma Tumor of bone.
RELATED TERMS--------------------------------------
Tumor
Overgrowth of tissue.
Bone
Bone refers either to a hardened connective tissue or to one of the individual structures, or organs, into which it is formed, found in many animals. Bones support body structures, protect internal organs, and (in conjunction with muscles) facilitate movement; are also involved with cell formation, calcium metabolism, and mineral storage. The bones of an animal are, collectively, known as the skeleton.
SIMILAR TERMS--------------------------------------
Osteitis condensans ilii
Sclerosis at the sacral side of the sacroiliac joint. Unknown aetiology. May be confused with sacroiliitis.
Osteitis deformans
Paget's disease of bone.
Osteitis fibrosa cystica
Bone disease which occurs in hyperparathyroidism. Excess fibrous tissue and osteoclasts are found in lesions which may become cystic ('Brown tumours').
Osteoarthritis
Degenerative disorder of joints, most often from disease in the spine and in the weight bearing joints (knees and hips). Normally seen with aging, but can occur prematurely due to various reasons, for instance after an injury to a joint. Also known as degenerative joint disease, it can cause joint pain, loss of function, reduced joint motion, and deformity.
Osteoarthrosis
Synonymous with 'osteoarthritis'.
Osteoblast
A type of bone cell characterized by its mobility and by its ability to produce bone matrix.
Osteoblastic
Osteoblastic refers to something pertaining to or composed of osteoblasts.
Osteoblastoma
Usually benign but occasionally malignant and metastasising tumour which occurs most commonly in the spine.
Osteocalcin
A protein found in young osteoblasts. (GLA protein, BGP) Serum level reflects rate of bone turnover.
Osteochondritis dissecans
A form of osteonecrosis in which a segment of bone and articular cartilage become demarcated and separate from the surrounding bone. Most commonly occurs in the knee.
Osteochondritis Dissecans
Osteochondritis Dissecans refers to a bone degeneration inside of a joint, causing small pieces of bone and cartilage to become detached.
Osteochondroma
A benign cartilage-tipped exostosis.
Osteoclast
Bone-resorbing cell.
Osteocyte
A type of bone cell characterized by its immobile location within a lacunus and by a reduced ability to produce bone matrix.
Osteogenesis imperfecta
An inherited disorder of collagen which takes several forms. Premature osteoarthritis, blue sclerae, hypermobility and bone fragility may be features of the condition.
Osteogenic sarcoma
A malignant bone tumour which may occasionally arise in bone affected by Paget's disease.
Osteoid
Non-mineralised bone matrix.
Osteoid osteoma
A benign, osteoid-forming tumour. May be very painful, especially at night.
Osteolite
Osteolite is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): technetium tc-99m medronate kit.
Osteomalacia
A disease of adults that is characterized by softening of the bones due to loss of bone mineral. Osteomalacia is characteristic of vitamin D deficiency in adults, while children with vitamin D deficiency suffer from rickets.
Osteomyelitis
Inflammation of bone.
Osteonecrosis
See 'Aseptic necrosis'.
Osteopathic Medical Center
The Osteopathic Medical Center is a hospital in Fort Worth, Texas, United States.
Osteopathic Medical Center of Texas
Osteopathic Medical Center of Texas is a hospital in Fort Worth, Texas (USA).
Osteopathic Medical Center-Philadelphia
The Osteopathic Medical Center-Philadelphia is a hospital in Philadelphia, Pennsylvania, United States.
Osteopathy
A system of therapy emphasizing primary medical care and the importance of body mechanics and manipulation to correct abnormalities.
Osteopenia
'Thin' bone due to osteomalacia or osteoporosis.
Osteophyte
Bony outgrowth seen at joint margin in osteoarthritis.
Osteoporosis
Break-down or disintegration of bone, resulting in diminished and porous bone mass. Osteoporosis can result from cancer (including breast cancer) that has spread to the bones), some cancer therapies, and estrogen deficiency (estrogen is an important participant in maintaining bone). Osteoporosis can cause pain, deformity (especially of the spine), pathologic fractures (fractures caused by weakened bone), or traumatic fractures (for example, wrist or hip fracture from a fall).
Osteopuncture
Form of acupuncture named by Ronald M. Lawrence, M.D. In osteopuncture, the needle penetrates the periosteum (the membrane that covers bones) and is usually electrified. The acupuncture points of osteopuncture do not correlate with "meridian points."
Osteosarcoma
Osteosarcoma is the most common primary malignant bone tumour, excluding myeloma and lymphoma. There is a predilection for the metaphyseal region of tubular long bones. 50% of cases occur around the knee. It is a cancer that usually affects the large bones of the arm or leg. It occurs most commonly in young people and affects more males than females. Also called osteogenic sarcoma.
Osteoscan
Osteoscan is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): technetium tc-99m etidronate kit.
Osteotomy
Operation to produce realignment of articular surfaces of a joint so as to exploit remaining undamaged cartilage.
PREVIOUS AND NEXT TERMS--------------------------------------
Optomotor response
The turning response of an animal presented with uniform flow of optic texture in the direction which minimizes rate of flow relative to the animal.
Orientation columns
The primary visual cortex (V1) is organized into narrow columns (from pial surface to white matter) containing cells with almost identically the same orientation preferences.
Oreintation selectivity
Cells which have oriented receptive fields, responding more for some orientations than others.
Outer segment
Portion of the photoreceptor cell that contains photopigment.
Oligochromemia
Deficiency of hemoglobin in the blood.
Osteoma
Osteomyelitis
Inflammation of bone.
Object relations
The emotional bonds between one person and another, as contrasted with interest in and love for the self; usually described in terms of capacity for loving and reacting appropriately to others. Melanie Klein is generally credited with founding the British object-relations school.
Obsession
Recurrent and persistent thought, impulse, or image experienced as intrusive and distressing. Recognized as being excessive and unreasonable even though it is the product of one's mind. This thought, impulse, or image cannot be expunged by logic or reasoning.
Oedipal stage
Overlapping some with the phallic stage, this phase (ages 4 to 6) represents a time of inevitable conflict between the child and parents. The child must desexualize the relationship to both parents in order to retain affectionate kinship with both of them. The process is accomplished by the internalization of the images of both parents, thereby giving more definite shape to the child's personality. With this internalization largely completed, the regulation of self-esteem and moral behavior comes from within.
Oedipus complex
Attachment of the child to the parent of the opposite sex, accompanied by envious and aggressive feelings toward the parent of the same sex. These feelings are largely repressed (i.e., made unconscious) because of the fear of displeasure or punishment by the parent of the same sex. In its original use, the term applied only to the boy or man.
RELATED TERMS--------------------------------------
Tumor
Overgrowth of tissue.
Bone
Bone refers either to a hardened connective tissue or to one of the individual structures, or organs, into which it is formed, found in many animals. Bones support body structures, protect internal organs, and (in conjunction with muscles) facilitate movement; are also involved with cell formation, calcium metabolism, and mineral storage. The bones of an animal are, collectively, known as the skeleton.
SIMILAR TERMS--------------------------------------
Osteitis condensans ilii
Sclerosis at the sacral side of the sacroiliac joint. Unknown aetiology. May be confused with sacroiliitis.
Osteitis deformans
Paget's disease of bone.
Osteitis fibrosa cystica
Bone disease which occurs in hyperparathyroidism. Excess fibrous tissue and osteoclasts are found in lesions which may become cystic ('Brown tumours').
Osteoarthritis
Degenerative disorder of joints, most often from disease in the spine and in the weight bearing joints (knees and hips). Normally seen with aging, but can occur prematurely due to various reasons, for instance after an injury to a joint. Also known as degenerative joint disease, it can cause joint pain, loss of function, reduced joint motion, and deformity.
Osteoarthrosis
Synonymous with 'osteoarthritis'.
Osteoblast
A type of bone cell characterized by its mobility and by its ability to produce bone matrix.
Osteoblastic
Osteoblastic refers to something pertaining to or composed of osteoblasts.
Osteoblastoma
Usually benign but occasionally malignant and metastasising tumour which occurs most commonly in the spine.
Osteocalcin
A protein found in young osteoblasts. (GLA protein, BGP) Serum level reflects rate of bone turnover.
Osteochondritis dissecans
A form of osteonecrosis in which a segment of bone and articular cartilage become demarcated and separate from the surrounding bone. Most commonly occurs in the knee.
Osteochondritis Dissecans
Osteochondritis Dissecans refers to a bone degeneration inside of a joint, causing small pieces of bone and cartilage to become detached.
Osteochondroma
A benign cartilage-tipped exostosis.
Osteoclast
Bone-resorbing cell.
Osteocyte
A type of bone cell characterized by its immobile location within a lacunus and by a reduced ability to produce bone matrix.
Osteogenesis imperfecta
An inherited disorder of collagen which takes several forms. Premature osteoarthritis, blue sclerae, hypermobility and bone fragility may be features of the condition.
Osteogenic sarcoma
A malignant bone tumour which may occasionally arise in bone affected by Paget's disease.
Osteoid
Non-mineralised bone matrix.
Osteoid osteoma
A benign, osteoid-forming tumour. May be very painful, especially at night.
Osteolite
Osteolite is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): technetium tc-99m medronate kit.
Osteomalacia
A disease of adults that is characterized by softening of the bones due to loss of bone mineral. Osteomalacia is characteristic of vitamin D deficiency in adults, while children with vitamin D deficiency suffer from rickets.
Osteomyelitis
Inflammation of bone.
Osteonecrosis
See 'Aseptic necrosis'.
Osteopathic Medical Center
The Osteopathic Medical Center is a hospital in Fort Worth, Texas, United States.
Osteopathic Medical Center of Texas
Osteopathic Medical Center of Texas is a hospital in Fort Worth, Texas (USA).
Osteopathic Medical Center-Philadelphia
The Osteopathic Medical Center-Philadelphia is a hospital in Philadelphia, Pennsylvania, United States.
Osteopathy
A system of therapy emphasizing primary medical care and the importance of body mechanics and manipulation to correct abnormalities.
Osteopenia
'Thin' bone due to osteomalacia or osteoporosis.
Osteophyte
Bony outgrowth seen at joint margin in osteoarthritis.
Osteoporosis
Break-down or disintegration of bone, resulting in diminished and porous bone mass. Osteoporosis can result from cancer (including breast cancer) that has spread to the bones), some cancer therapies, and estrogen deficiency (estrogen is an important participant in maintaining bone). Osteoporosis can cause pain, deformity (especially of the spine), pathologic fractures (fractures caused by weakened bone), or traumatic fractures (for example, wrist or hip fracture from a fall).
Osteopuncture
Form of acupuncture named by Ronald M. Lawrence, M.D. In osteopuncture, the needle penetrates the periosteum (the membrane that covers bones) and is usually electrified. The acupuncture points of osteopuncture do not correlate with "meridian points."
Osteosarcoma
Osteosarcoma is the most common primary malignant bone tumour, excluding myeloma and lymphoma. There is a predilection for the metaphyseal region of tubular long bones. 50% of cases occur around the knee. It is a cancer that usually affects the large bones of the arm or leg. It occurs most commonly in young people and affects more males than females. Also called osteogenic sarcoma.
Osteoscan
Osteoscan is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): technetium tc-99m etidronate kit.
Osteotomy
Operation to produce realignment of articular surfaces of a joint so as to exploit remaining undamaged cartilage.
PREVIOUS AND NEXT TERMS--------------------------------------
Optomotor response
The turning response of an animal presented with uniform flow of optic texture in the direction which minimizes rate of flow relative to the animal.
Orientation columns
The primary visual cortex (V1) is organized into narrow columns (from pial surface to white matter) containing cells with almost identically the same orientation preferences.
Oreintation selectivity
Cells which have oriented receptive fields, responding more for some orientations than others.
Outer segment
Portion of the photoreceptor cell that contains photopigment.
Oligochromemia
Deficiency of hemoglobin in the blood.
Osteoma
Osteomyelitis
Inflammation of bone.
Object relations
The emotional bonds between one person and another, as contrasted with interest in and love for the self; usually described in terms of capacity for loving and reacting appropriately to others. Melanie Klein is generally credited with founding the British object-relations school.
Obsession
Recurrent and persistent thought, impulse, or image experienced as intrusive and distressing. Recognized as being excessive and unreasonable even though it is the product of one's mind. This thought, impulse, or image cannot be expunged by logic or reasoning.
Oedipal stage
Overlapping some with the phallic stage, this phase (ages 4 to 6) represents a time of inevitable conflict between the child and parents. The child must desexualize the relationship to both parents in order to retain affectionate kinship with both of them. The process is accomplished by the internalization of the images of both parents, thereby giving more definite shape to the child's personality. With this internalization largely completed, the regulation of self-esteem and moral behavior comes from within.
Oedipus complex
Attachment of the child to the parent of the opposite sex, accompanied by envious and aggressive feelings toward the parent of the same sex. These feelings are largely repressed (i.e., made unconscious) because of the fear of displeasure or punishment by the parent of the same sex. In its original use, the term applied only to the boy or man.
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This dictionary contains 19186 terms.
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