| junctional cyst | A cyst of the testis arising from the structures connecting the rete testis with the epididymis. (05 Mar 2000) |
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| junctional epithelium | A collar of epthelial cells attached to the tooth surface and subepithelial connective tissue found at the base of the gingival crevice. Synonym: epithelial attachment. (05 Mar 2000) |
| junctional extrasystole | An extrasystole arising from the "junctional" tissues, either the A-V node or A-V bundle. Synonym: junctional extrasystole. (05 Mar 2000) |
| junctional rhythm | Rhythms originating anywhere within the A-V junction. Formerly, "A-V nodal" or simply "nodal" rhythms. (05 Mar 2000) |
| junctional tachycardia | Supraventricular tachycardia arising from the atrioventricular junction (formerly called nodal tachycardia). (05 Mar 2000) |