| A&BC | air and bone conduction |
|---|---|
| ABM | adjusted body mass; alveolar basement membrane; autologous bone marrow |
| ABMI | autologous bone marrow transplantation |
| ABMT | American Board of Medical Toxicology; autologous bone marrow transplantation |
| AC/BC | air conduction/bone conduction [time ratio] |
| greater alar cartilage | One of a pair of cartilages that form the tip of the nose. It consists of a medial crus that extends into the nasal septum with its fellow of the opposite side, and a lateral crus that forms the anterior part of the wing of the nose. Synonym: cartilago alaris major. (05 Mar 2000) |
|---|---|
| greater arterial circle of iris | An arterial circle at the ciliary border of the iris. Synonym: circulus arteriosus iridis major. (05 Mar 2000) |
| greater circulation | The circulation of blood through the arteries, capillaries, and veins of the general system, from the left ventricle to the right atrium. Synonym: greater circulation. (05 Mar 2000) |
| greater cul-de-sac | The portion of the stomach that lies above the cardiac notch. Synonym: fundus gastricus, fundus ventriculi, greater cul-de-sac. (05 Mar 2000) |
| greater curvature of stomach | The border of the stomach to which the greater omentum is attached. Synonym: curvatura ventriculi major. (05 Mar 2000) |
| greater occipital nerve | <anatomy, nerve> Medial branch of the dorsal primary ramus of the second cervical nerve; sends branches to the semispinalis capitis and multifidus cervicis, but is mainly cutaneous, supplying the back part of the scalp. Synonym: nervus occipitalis major. (05 Mar 2000) |
| greater omentum | A peritoneal fold passing from the greater curvature of the stomach to the transverse colon, hanging like an apron in front of the intestines. Synonym: omentum majus, caul, cowl, epiploon, gastrocolic omentum, pileus, velum. Lesser omentum, a peritoneal fold passing from the margins of the porta hepatis and the bottom of the fissure of the ductus venosus to the lesser curvature of the stomach and to the the upper border of the duodenum for a distance of about 2 cm beyond the gastroduodenal pylorus. Synonym: omentum minus, gastrohepatic omentum, omentulum. (05 Mar 2000) |
| greater palatine artery | <anatomy, artery> Anterior branch of descending palatine artery, supplying the gums and mucous membrane of the hard palate. Synonym: arteria palatina major. (05 Mar 2000) |
| greater palatine canal | The canalis formed between the maxilla and palatine bones; it transmits the descending palatine artery and the greater palatine nerve. Synonym: canalis palatinus major, pterygopalatine canal. (05 Mar 2000) |
| greater 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) |
| greater palatine groove | A groove on both the body of the maxilla and the perpendicular plate of the palatine bone; when the bones are articulated the grooves form the greater palatine canal. Synonym: sulcus palatinus major, pterygopalatine groove, sulcus for greater palatine nerve, sulcus pterygopalatinus. (05 Mar 2000) |
| greater palatine nerve | <anatomy, nerve> A branch of the pterygopalatine ganglion that passes downward through the greater palatine canal to supply the mucosa and glands of the hard palate, and the anterior part of the soft palate. Synonym: nervus palatinus major. (05 Mar 2000) |
| greater pectoral muscle | <anatomy, muscle> Origin, clavicular part (pars clavicularis), medial half of clavicle; sternocostal part (pars sternocostalis), anterior surface of manubrium and body of sternum and cartilages of first to sixth ribs; abdominal part (pars abdominalis), aponeurosis of external oblique; insertion, crest of greater tubercle of humerus; action, adducts and medially rotates arm; nerve supply, anterior thoracic. Synonym: musculus pectoralis major, greater pectoral muscle. (05 Mar 2000) |
| greater pelvis | The expanded portion of the pelvis above the brim. Synonym: pelvis major, false pelvis, large pelvis, pelvis spuria. (05 Mar 2000) |
| greater peritoneal cavity | The space enclosed by the peritoneum. It is divided into two portions, the greater sac and the lesser sac or omental bursa, which lies behind the stomach. The two sacs are connected by the foramen of winslow, or epiploic foramen. (12 Dec 1998) |