annulus Definition

halo, ring, doughnut, anchor ring, anulus, tubing, loop, rim, girdle, hoop, oval, fibrosus, tricuspid valve, acetabulum, distal, tamponade, coronary sinus, pulmonary vein, subclavian artery, urethra, pulmonary artery, torus, bleb, periosteum, spermatic cord, perforations, dural, anastomosis, uterine cavity, pericardium, subarachnoid space, anal canal, diverticula, inferior vena cava, fibrocartilage, peritoneal cavity, descending aorta, ostia, interspace, capsular, acromion, intervertebral disc, foramen, sigmoid colon, cecum, intraventricular, ureter, hyaline cartilage, lateral epicondyle, uterine artery, aortic arch, embolus, peritoneum, mediastinum, intervertebral, alveoli, bursa, lymphatics, semipermeable membrane, pleural, laparotomy, bronchi, abdominal cavity, popliteal artery, intervertebral disk, intima, pelvic cavity, pedicle, tubules, trabeculae, flange, permeabilities, femoral vein, atrial, basilar artery, femoral, ascending aorta, commissure, myocardium, septal, umbilical vein, thoracic aorta, mucosa, cerebrospinal fluid, pericardial sac, overpressure, left ventricle, epiglottis, epiphysis, partial veil, adventitia, endotracheal tube, parenchyma, dura mater, vena cava, atrioventricular, synovial fluid, venous blood, cavernous sinus, seafloor,