| posterior branch of great auricular nerve | <anatomy, nerve> Provides general sensory fibres to skin of posterior auricle and over mastoid process. Synonym: ramus posterior nervi auricularis magni. (05 Mar 2000) |
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| short extensor muscle of great toe | <anatomy, muscle> The medial belly of extensor digitorum brevis musculus, the tendon of which is inserted into the base of the proximal phalanx of the great toe. Synonym: musculus extensor hallucis brevis, short extensor muscle of great toe. (05 Mar 2000) |
| short flexor muscle of great toe | <anatomy, muscle> Origin, medial surface of cuboid and middle and lateral cuneiform bones; insertion, by two tendons, embracing that of the flexor longus hallucis, into the sides of the base of the proximal phalanx of the great toe; action, flexes great toe; nerve supply, medial and lateral plantar. Synonym: musculus flexor hallucis brevis, musculus flexor brevis hallucis, short flexor muscle of great toe. (05 Mar 2000) |
| intermediate great muscle | <anatomy, muscle> Origin, upper three-fourths of anterior surface of shaft of femur; insertion, tibial tuberosity by way of common tendon of quadriceps femoris and patellar ligament; action, extends leg; nerve supply, femoral. Synonym: musculus vastus intermedius, crureus, femoral muscle, intermediate great muscle, intermediate vastus muscle. (05 Mar 2000) |
| transposition of great vessels | <embryology> A congenital cardiovascular malformation in which the aorta arises entirely from the right ventricle and the pulmonary artery from the left ventricle, so that the venous return from the peripheral circulation is recirculated by the right ventricle via the aorta to the systemic circulation without being oxygenated in the lungs. There is an intracardiac shunt, increased pulmonary vascularity, cyanosis. The chest X-ray shows that the heart size may be normal at birth, but it gradually enlarges with a globular or egg-on-its-side appearance. (27 Jun 1999) |
| transposition of the great vessels | Congenital malformation in which the aorta arises from the morphologic right ventricle and the pulmonary artery from the morphologic left ventricle resulting in two separate and parallel circulations. The condition is lethal unless some communication exists between the systemic and pulmonic circulation after birth; otherwise, unoxygenated venous blood inappropriately enters the systemic circulation, and oxygenated pulmonary venous blood is inappropriately directed to the pulmonary circulation. The life sustaining communication may be an intra-atrial passage or a patent ductus arteriosus. Synonym: transposition of arterial stems. (05 Mar 2000) |
| lateral great muscle | <anatomy, muscle> Origin, lateral lip of linea aspera as far as great trochanter; insertion, tibial tuberosity by way of common tendon of quadriceps femoris and patellar ligament; action, extends leg; nerve supply, femoral. Synonym: musculus vastus lateralis, lateral great muscle, lateral vastus muscle, musculus vastus externus. (05 Mar 2000) |
| long extensor muscle of great toe | <anatomy, muscle> Origin, lateral surface of tibia and interosseous membrane; insertion, base of distal phalanx of great toe; action, extends the great toe; nerve supply, anterior tibial. Synonym: musculus extensor hallucis longus, long extensor muscle of great toe. (05 Mar 2000) |
| long flexor muscle of great toe | <anatomy, muscle> Origin, lower two-thirds of posterior surface of fibula; insertion, base of distal phalanx of great toe; action, flexes great toe; nerve supply, medial plantar. Synonym: musculus flexor hallucis longus, long flexor muscle of great toe, musculus flexor longus hallucis. (05 Mar 2000) |
| anterior condyloid foramen | The canal through which the hypoglossal nerve emerges from the skull. Synonym: canalis hypoglossalis, anterior condyloid canal of occipital bone, anterior condyloid foramen. (05 Mar 2000) |
| anterior palatine foramen | An opening in the posterolateral corner of the hard palate opposite the last molar tooth, marking the lower end of the pterygopalatine canal. Synonym: foramen palatinum majus, anterior palatine foramen. (05 Mar 2000) |
| aortic foramen | The opening in the diaphragm bounded by the two crura, the vertebral column, and the median arcuate ligament, through which pass the aorta and thoracic duct. Synonym: hiatus aorticus, aortic foramen, aortic opening. (05 Mar 2000) |
| apical dental foramen | The opening at the apex of the root of a tooth that gives passage to the nerve and blood vessels. Synonym: foramen apicis dentis, apical dental foramen, root foramen. (05 Mar 2000) |
| apical foramen of tooth | The opening at the apex of the root of a tooth that gives passage to the nerve and blood vessels. Synonym: foramen apicis dentis, apical dental foramen, root foramen. (05 Mar 2000) |
| arachnoid foramen | The large midline opening in the posterior inferior part of the roof of the fourth ventricle, connecting the ventricle with the cerebellomedullary cistern. Synonym: apertura mediana ventriculi quarti, arachnoid foramen, Magendie's foramen, median aperture of the fourth ventricle. (05 Mar 2000) |