Atrioseptostomy
atrioseptostomy
atrioseptostomy a·tri·o·sep·tos·to·my (ā’trē-ō-sěp-tŏs’tə-mē)
n.
the surgical establishment of a communication between the atria of the heart.
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- Atrioventricular
of or relating to the atria and ventricles of the heart. abbreviation: av, a-v. adjective (anatomy) of, relating to, or affecting both the atria and the ventricles of the heart: atrioventricular disease atrioventricular a·tri·o·ven·tric·u·lar (ā’trē-ō-věn-trĭk’yə-lər) adj. abbr. a-v of or relating to the atria and the ventricles of the heart.
- Atrioventricular block
atrioventricular block atrioventricular block n. impairment of the normal conduction of impulses between the atria and the ventricles.
- Atrioventricular bundle
a bundle of specialized muscle fibers regulating the heartbeat by conducting impulses from the right atrium to the ventricles. atrioventricular bundle n. see atrioventricular trunk.
- Atrioventricular canal
atrioventricular c-n-l atrioventricular c-n-l n. the c-n-l in the embryonic heart joining the atrium to the ventricle.
- Atrioventricular canal cushion
atrioventricular c-n-l cushion atrioventricular c-n-l cushion n. either of a pair of mounds of embryonic connective tissue covered by endothelium, bulging dorsally and ventrally into the embryonic atrioventricular c-n-l, eventually growing together and dividing the c-n-l into right and left atria. also called endocardial cushion.