| emissary | 1. Exploring; spying. 2. <anatomy> Applied to the veins which pass out of the cranium through apertures in its walls. Source: Websters Dictionary (01 Mar 1998) |
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| emissary sphenoidal foramen | <anatomy> A minute inconstant foramen in the greater wing of the sphenoid bone, anterior and medial to the foramen ovale, transmitting a small emissary vein from the cavernous sinus. Synonym: emissary sphenoidal foramen, venous foramen, Vesalius' foramen. (05 Mar 2000) |
| emissary vein | <anatomy, vein> One of the channels of communication between the venous sinuses of the dura mater and the veins of the diploe and the scalp. See: condylar emissary vein, mastoid emissary vein, occipital emissary vein, parietal emissary vein. Synonym: vena emissaria, emissarium, emissary. (05 Mar 2000) |
| parietal emissary vein | <anatomy, vein> The vein that connects the superior sagittal sinus with the tributaries of the superficial temporal vein and other veins of the scalp. Synonym: vena emissaria parietalis, emissarium parietale, Santorini's vein. (05 Mar 2000) |
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| mastoid emissary vein | <anatomy, vein> The vein that connects the sigmoid sinus with the occipital vein or one of the tributaries of the external jugular vein by way of the mastoid foramen. Synonym: vena emissaria mastoidea, emissarium mastoideum. (05 Mar 2000) |
| condylar emissary vein | <anatomy, vein> A vein that connects the sigmoid sinus and the external vertebral venous plexuses through the condylar canal of the occipital bone. Synonym: vena emissaria condylaris, emissarium condyloideum. (05 Mar 2000) |
| occipital emissary vein | <anatomy, vein> An inconstant vessel perforating the squama of the occipital bone to connect the occipital veins with the confluens sinuum. Synonym: vena emissaria occipitalis, emissarium occipitale. (05 Mar 2000) |