Groove

(groov). A furrow or channel. G., Auriculo-ventricular. See Furrow . G., Bicipital, the deep groove on the anterior surface of the humerus separating the greater and le er tuberosities. G., Cavernous, a broad groove on the superior surface of the sphenoid bone lodging the internal carotid artery and the cavernous sinus. G., Dental. See Dental Groove. G., Infraorbital, the furrow at the posterior portion of the superior maxillary bone on its orbital surface, which finally develops into a canal of the same name. G., Lachrymal, a groove in front of the opening of the antrum, on the inner surface of the superior maxillary bone. G., Medullary, a long shallow furrow that appears along the dorsal line of the neural tube of the embryo. G., Mylo-hyoid, the groove on the inner surface of the inferior maxillary bone running from the submaxillary fo a to the inferior dental foramen. G., Nasal, the groove in the nasal bone for the nasal nerve. G., Occipital, the groove in the mastoid portion of the temporal bone, that lodges the occipital artery. G., Optic, the groove on the superior surface of the sphenoid bone terminating on either side in the optic foramen. G., Sacral, the channel on the back of the sacrum between the spinous and transverse proce es. G., Subclavian, the longitudinal groove on the under surface of the clavicle for the attachment of the sub clavi us muscle. G., Spiral. See Sulcus spiral is. G., Vertebral, the groove running along the spine on each side of the spinous proce .