| retinaculum extensorum | A strong fibrous band formed as a thickening of the antebrachial deep fascia, stretching obliquely across the back of the wrist, attaching deeply to ridges on the dorsal aspect of the radius, triquetral and pisiform bones, binding down the extensor tendons of the fingers and thumb. Synonym: retinaculum extensorum, dorsal carpal ligament, ligamentum carpi dorsale. (05 Mar 2000) |
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| retinaculum flexorum | <anatomy> A strong fibrous band crossing the front of the carpus and binding down the flexor tendons of the digits and the flexor carpi radialis tendon and the median nerve; in so doing it creates the carpal tunnel. Synonym: retinaculum flexorum, deep part of flexor retinaculum, flexor retinaculum, ligamentum carpi transversum, ligamentum carpi volare, volar carpal ligament. (05 Mar 2000) |
| retinaculum musculorum extensorum inferius | A Y-shaped ligament restraining the extensor tendons of the foot distal to the ankle joint. Synonym: retinaculum musculorum extensorum inferius, cruciate ligament of leg, inferior retinaculum of extensor muscles, ligamentum cruciatum cruris. (05 Mar 2000) |
| retinaculum musculorum extensorum superius | The ligament that binds down the extensor tendons proximal to the ankle joint; it is continuous with (a thickening of) the deep fascia of the leg. Synonym: retinaculum musculorum extensorum superius, ligamentum transversum cruris, superior retinaculum of extensor muscles, transverse crural ligament, transverse ligament of leg. (05 Mar 2000) |
| retinaculum musculorum flexorum | A wide band passing from the medial malleolus to the medial and upper border of the calcaneus and to the plantar surface as far as the navicular bone; it holds in place the tendons of the tibialis posterior, flexor digitorum longus, and flexor hallucis longus. Synonym: retinaculum musculorum flexorum, laciniate ligament, ligamentum laciniatum, retinaculum of flexor muscles. (05 Mar 2000) |
| retinaculum of articular capsule of hip | One of several longitudinal folds of the articular capsule of the hip joint reflected onto the femoral neck deep to which the retinacular branches of the medial femoral circumflex artery pass to reach the femoral head. Synonym: retinaculum capsulae articularis coxae, Weitbrecht's fibres. (05 Mar 2000) |
| retinaculum of flexor muscles | A wide band passing from the medial malleolus to the medial and upper border of the calcaneus and to the plantar surface as far as the navicular bone; it holds in place the tendons of the tibialis posterior, flexor digitorum longus, and flexor hallucis longus. Synonym: retinaculum musculorum flexorum, laciniate ligament, ligamentum laciniatum, retinaculum of flexor muscles. (05 Mar 2000) |
| retinaculum of skin | One of the numerous small fibrous strands that extend through the superficial fascia attaching the deep surface of the dermis to the underlying deep fascia determining the mobility of the skin over the deep structures; these are particularly well developed over the breast where they are known as suspensory ligaments of the breast; they are also well-developed, but short, in the palms and soles. Synonym: retinaculum of skin. (05 Mar 2000) |
| retinaculum patellae laterale | Part of the aponeurosis of the vastus lateralis muscle passing lateral to the patella to attach to the tibial tuberosity. Synonym: retinaculum patellae laterale. (05 Mar 2000) |
| retinaculum patellae mediale | Part of the aponeurosis of the vastus medialis muscle passing medial to the patella to attach to the medial condyle of the tibia, forming the anteromedial aspect of the fibrous capsule of the knee joint. Synonym: retinaculum patellae mediale. (05 Mar 2000) |
| retinaculum tendinum | A ligamentous structure to restrain tendons, such as the flexor or extensor retinacula, or the annular parts of the digital fibrous sheaths. (05 Mar 2000) |
| retinal | 1. <anatomy> Pertaining to the retina. 2. <biochemistry> The aldehyde of retinol, derived by the oxidative enzymatic splitting of absorbed dietary carotene and having vitamin A activity. In the retina, retinal combines with opsins to form visual pigments. One isomer, 11 cis retinal combines with opsin in the rods (scotopsin) to form rhodopsin or visual purple. Another, all trans retinal (trans r.), visual yellow, xanthopsin) results from the bleaching of rhodopsin by light, in which the 11 cis form is converted to the all trans form. Retinal also combines with opsins in the cones (photopsins) to form the three pigments responsible for colour vision. (18 Nov 1997) |
| retinal adaptation | Adjustment to degree of illumination. (05 Mar 2000) |
| retinal anlage tumour | A benign neoplasm of neuroectodermal origin that most often involves the anterior maxilla of infants in the first year of life. It presents clinically as a rapidly growing blue-black lesion producing a destructive radiolucency; histologically, it is characterised by small round undifferentiated tumour cells interspersed with larger polyhedral melanin-producing cells arranged in an alveolar configuration. Synonym: melanoameloblastoma, pigmented ameloblastoma, pigmented epulis, progonoma of jaw, retinal anlage tumour. (05 Mar 2000) |
| retinal artery | <anatomy, artery> Central retinal artery and its branches. It arises from the ophthalmic artery, pierces the optic nerve and runs through its centre, enters the eye through the porus opticus and branches to supply the retina. (12 Dec 1998) |
Synonyms :
Synonyms : Acyl CoA-Retinol Acyltransferase, Fatty Acyl Coenzyme A-Retinol Acyltransferase, Retinol Ester Synthetase, Retinol Fatty-Acyltransferase, Retinol Stearate Synthetase, Retinol-Palmitate Synthetase, Acyl CoA Retinol Acyltransferase, Ester Synthetase, Retinol
Synonyms : Cellular Retinol Binding Protein, Retinoid Binding Protein, F-Type, Retinoid Binding Proteins, Retinol Binding Proteins, Retinol-Binding Protein 1, Binding Proteins, Retinoid, Binding Proteins, Retinol, Protein 1, Retinol-Binding, Proteins, Retinoid Binding
Synonyms : Fibroplasia, Retrolental, Fibroplasias, Retrolental, Prematurity Retinopathies, Prematurity Retinopathy, Retrolental Fibroplasias
Synonyms : Retinoschisis, Juvenile, Retinoschisis, Juvenile, X Chromosome-Linked, Retinoschisis, X-Linked, Degenerative Retinoschises, Degenerative Retinoschisis, Juvenile Retinoschises, Juvenile Retinoschisis, Retinoschises, Retinoschises, Degenerative
| retinoic acid |
(ret
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| retinol |
(ret
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| retinopapillitis |
(ret
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| reticul- |
(reticul(o)-) [L. reticulum dim. of rete net] a combining form denoting a relationship to a reticulum or to a reticular structure.
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| retinopathy of prematurity |
a bilateral retinopathy typically occurring in premature infants treated with high concentrations of oxygen, characterized by vascular dilatation, proliferation, and tortuosity, edema, and retinal detachment, with ultimate conversion of the retina into a fibrous mass that can be seen as a dense retrolental membrane; usually, growth of the eye is arrested and may result in microphthalmia, and blindness may occur. Called also retrolental fibroplasia and Terry's syndrome.
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| RET | visual receptor cell sensitive to color |
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| RET | visual impairment resulting from the retina becoming separated from the choroid in the back of the eye |
| RET | a red photopigment in the retinal rods of vertebrates |
| RET | visual receptor cell sensitive to dim light |
| RET | either of two yellow to red retinal pigments formed from Rhodopsin by the action of light |
| RET | inflammation of the retina |
| RET | malignant ocular tumor of retinal cells |
| RET | an unsaturated alcohol that occurs in marine fish-liver oils and is synthesized biologically from carotene |
| RET | the group following and attending to some important person |
| RET | go to bed in order to sleep |
| RET | in baseball |
| RET | lose interest |