| 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) |
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| 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) |
| dystonia musculorum deformans | A genetic, environmental, or idiopathic disorder, usually beginning in childhood or adolescence, marked by muscular contractions that distort the spine, limbs, hips, and sometimes the cranial-innervated muscles. The abnormal movements are increased by excitement and, at least initially, abolished by sleep. The musculature is hypertonic when in action, hypotonic when at rest. Hereditary forms usually begin with involuntary posturing of the foot or hand (autosomal recessive form ) or of the neck or trunk (autosomal dominant form ); both forms may progress to produce contortions of the entire body. Synonym: progressive torsion spasm, torsion disease of childhood, torsion dystonia, Ziehen-Oppenheim disease. (05 Mar 2000) |
| fascia muscularis musculorum bulbi | Muscular fascia; the part of the orbital fascia that envelops the extraocular muscles; it is thin posteriorly but becomes thicker where it is continuous with the bulbar sheath; the fascial sheaths of the four rectus muscles are connected by an intermuscular membrane. Synonym: fascia muscularis musculorum bulbi, fascia of extraocular muscles, muscular fascia of extraocular muscle. (05 Mar 2000) |
| lacuna musculorum | The lateral compartment beneath the inguinal (Poupart's) ligament, for the passage of the iliopsoas muscle and femoral nerve; it is separated by the iliopectineal arch from the vascular lacuna. Synonym: lacuna musculorum. (05 Mar 2000) |