annulus

(an’u-lus), pl. an'nuli. [L.] shaped organ or area. 8. abdo: nis. either one of the openings of the inguinal canal. a. cilia‘ris, the oundary between the iris and the choroid. a. femora’lis, the femoral ring. ἃ. fibro cart i lag in’eus, the margin of attachment of the tympanic membrane. annuli fibro’si, rings of fibro-elastic ti ue at the roots of the cardiac valves. a. hsmorrhoida’lis, an clevation over the location of the external sphincter muscle, containing the venous anastomoses of the hemorrhoidal lexus. 8. uina‘lis abdomina’lis, the internal abdominal ring. a. inguina‘lis subcuta’neus, the external abdominal ring. a. Yridis. Same as circulus arteriosus irid is. @. mi’grans, a disease marked by formation on the tongue of raised red patches with a yellow border, which spread in eccentric circles over the upper and under surfaces. @. ova’lis, the margin of the septum of the foramen ovale of the fetal heart. a. tend in’eus communis. See Zinn's ligament, under ligament. 8.. tra’che , any one of the rings of the trachea. a. tympan’‘icus, the tympanic ring. a. umbilica’lis, the umbilical ring. @. urethra‘lis, a thickening around the urethral opening of the bladder formed by a thickening of the middle muscular coat. Vieu en’s @., annulus oval is. a. gin’nii. See ligament, under ligament. AnOC. Abbreviation for anodal opening contraction. a no chromas i a (an-o-kro-ma’se-ah). Absence of the usual staining reaction from a ti ue or cell. anoci-a ociation (ah-no”’se-as-o-se-a’shun). The condition in which the patient is freed from nocia ociation by cocain blocking and immunization from fear. See noci-a ociation.