| LUSB | left upper scapular border; left upper sternal border |
|---|---|
| UA | absorption unsharpness; ultra-audible; ultrasonic arteriography; umbilical artery; unauthorized abse... |
| UE | uncertain etiology; under elbow; uninvolved epidermis; upper esophagus; upper extremity |
| URI | uniform resource identifier; upper respiratory illness; upper respiratory infection |
| US | screen unsharpness ultrasonic, ultrasound; ultrasonography; unconditioned stimulus; unique sequence;... |
acute angle
| thoracic limb | The shoulder, arm, forearm, wrist, and hand. Synonym: membrum superius, superior limb, thoracic limb, upper extremity. (05 Mar 2000) |
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| joints of free inferior limb | The joints uniting the bones of the free inferior limb to one another and to the pelvic girdle; they are the hip joint, knee joint, tibiofibular joints, and the joints of the ankle and foot. Synonym: articulationes membri inferioris liberi, joints of free inferior limb, juncturae membri inferioris liberi. (05 Mar 2000) |
| joints of free lower limb | The joints uniting the bones of the free inferior limb to one another and to the pelvic girdle; they are the hip joint, knee joint, tibiofibular joints, and the joints of the ankle and foot. Synonym: articulationes membri inferioris liberi, joints of free inferior limb, juncturae membri inferioris liberi. (05 Mar 2000) |
| joints of free superior limb | The joints uniting the bones of the free superior limb girdle; they are the shoulder joint, elbow joint, radioulnar joints, and joints of the wrist and hand. Synonym: articulationes membri superioris liberi, joints of free superior limb, juncturae membri superioris liberi. (05 Mar 2000) |
| joints of inferior limb girdle | The joints that unite the sacrum and the two hip bones to form the pelvic girdle; these are the sacroiliac joints, the pubic symphysis, the sacrotuberal and sacrospinal ligaments, and the obturator membrane. Synonym: articulationes cinguli membri inferioris, joints of inferior limb girdle. (05 Mar 2000) |
| joints of superior limb girdle | The joints uniting the scapulae and clavicles to each other and the latter to the sternum forming the superior limb girdle; these are the acromioclavicular and the sternoclavicular joints. Synonym: articulationes cinguli membri superioris, joints of superior limb girdle, juncturae cinguli membri superioris. (05 Mar 2000) |
| flexor retinaculum of lower limb | 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) |
| lateral limb | Limb or leg-like portion of a structure, farthest from midline. Synonym: crus laterale, lateral limb. (05 Mar 2000) |
| lateral surface of lower limb | The lateral surface of the inferior limb. Synonym: facies lateralis membri inferioris. (05 Mar 2000) |
| limb | A leg or arm. A branch of a tree. The upper, free, spreading portion of a corolla or perianth that is connate at the base. (09 Oct 1997) |
| limb bud | The limbs of vertebrates start as outpushings of mesenchyme surrounded by a simple epithelium. The distal region is referred to as the progress zone. There has been extensive study of positional information within the limb bud that determines, for example: the proximal distal pattern of bone development and the anterior posterior specification of digits. (18 Nov 1997) |
| limb deformities, congenital | Congenital structural deformities of the upper and lower extremities collectively or unspecified. (12 Dec 1998) |
| limb-girdle muscular dystrophy | One of the less well-defined types of muscular dystrophy, probably heterogenous in nature. Onset usually in childhood or early adulthood and both sexes affected. Characterised by weakness and wasting, usually symmetrical, of the pelvic girdle muscles, the shoulder girdle muscles, or both, but not the facial muscles. Muscle pseudohypertrophy, heart involvement, and mental retardation are absent. Variable inheritance. Synonym: Leyden-Mobius muscular dystrophy, pelvofemoral muscular dystrophy, scapulohumeral muscular dystrophy. (05 Mar 2000) |
| limb-kinetic apraxia | An inability to make movements or to use objects for the purpose intended. Synonym: cortical apraxia, innervation apraxia, limb-kinetic apraxia. (05 Mar 2000) |
| limb lead | One of the three standard leads (leads I, II, III) or one of the unipolar limb lead's (aVR, aVL, aVF). (05 Mar 2000) |